Post your job for free. Get quotes. Read reviews.

Post your job for free. Read reviews, get quotes, and see tips on hiring the right person.

What type of tradesperson do you need?

What type of job is it?

The quick way to find a local Gas Boiler - Repair specialist in Welwyn, Hertfordshire

There are 814 Gas Boiler - Repair specialists in Welwyn, and last month we helped homeowners get quotes for their home improvement jobs.

Browse Gas Boiler - Repair specialists in Welwyn, Hertfordshire

Take a look at our Gas Boiler - Repair specialists profiles, read reviews and request quotes directly.

Please specify a location
Please specify a trade

RekaPlumbing / home renovations Extensons - loft converting - bathroom - Gas installtions - boiler Installa - service

Latest homeowner review

Reviewed by John on 4/1/2016

Fantastic service, card kept will use again

We are a proactive plumbing and heating company on the Herts Beds borders, our engineers are CRB checked and fully insured. White Star Plumbing & heating guarantee all our work is first class and our service is second to none.All aspects of plumbing and heating gas,lpg or electric

Latest homeowner review

Reviewed by Philip on 2/3/2018

Very helpful

George

Gas Boiler - Repair in Welwyn

Do you have a list of projects that need to be done around the house? Do you need a room remodeled, a porch built or some quality painting done? We are friendly, qualified, honest and on-time. We are available for emergency needs 24/7.

Latest homeowner review

Reviewed by Lyn on 26/5/2022

George and his guys are hard working skilled tradesmen. He went the extra mile to give us a good job. Polite quick and tidy. Would recommend and would certainly use again.

Pawel

Gas Boiler - Repair in Welwyn

Hi, I'm Pawel, I offer friendly and professional, reliable services

Latest homeowner review

Reviewed by Jermaine on 25/11/2021

Very friendly guy. Knows his jobs Inside out.My laminate flooring looks perfect. Highly recommend!!

NOW FIX

Gas Boiler - Repair in Welwyn

Expert Plumbers At The Ready Our highly skilled, friendly and professional plumbing engineers can cover all sorts of plumbing jobs, such as toilet repairs, radiator even mending a dripping tap. Central Heating Installations Our expert Gas Safe engineers and heating installers specialise in fitting a range of heating appliances, including gas boilers, cylinders, immersion heaters, radiators and gas and electric fires. Gas boilers Cylinders Immersion heaters Radiators Gas fires Landlord Gas Safety Certificate If you own a tenanted property, it is a legal requirement to have a safety certificate (also known as a CP12) issued for all the appliances by a Gas Safe engineer. We are specialised installing under flooring heating and repairing

Latest homeowner review

Reviewed by Kim on 20/12/2022

Very thorough, great service at a very reasonable price. Would highly recommend.

Latest homeowner review

Reviewed by Zsuzsa on 9/1/2019

Although it turned out that there was no leak only the condensation caused the problem, I got a professional advice and for free! Will definitely call them back!

Latest homeowner review

Reviewed by Michelle on 14/5/2014

I would have no hesitation in recomending this company.

we install grade2 insurance aproved alarms,

Latest homeowner review

Reviewed by Matthew on 16/8/2022

Colin came within the hour and sorted out a problem which we have had for a long while. Thank you!

AWM Windows, Doors and Conservatories are a family owned manufacturer and installer of high quality uPVC and Aluminium windows, conservatories, roof lanterns & doors. We are a Nationwide company carrying out Building Works alongside the supply and fit of windows and doors.

Latest homeowner review

Reviewed by Kevin on 16/10/2018

This job was paid for in full, and since being done I have had another company out to refit and replace doors. You were paid in full - it's strange how it's taken 6 YEARS for you to answer the review!?!?!?!

Home improvements father and son we do most things.If you would like to see some before and after pictures, take a look at our pictures to help you feel more comfortable and see the quality of work you will be getting.

Latest homeowner review

Reviewed by Lin on 15/7/2013

Rob arrived when arranged, was polite and did a thorough job, even more than requested. Tidy and neat work. I would use their services again and recommend them to others.

Dyno Plumbing/Rod. We are a specialist plumbing & drainage company, we offer a wide range of services from a dripping tap to a full bathroom installation and everything in between. we also offer internal/external drain cleans or a waste replacement service. So many more services available, Set prices available for taps, sure stops, shower pumps. We also offer complete power flush of your heating system.

Latest homeowner review

Reviewed by Christopher on 16/7/2024

Speedy response a day after posting to replace kitchen tap and cistern mechanism. Ryan and Jamie arrived swiftly, they were very courteous and carried out the work efficiently without any fuss. Would highly recommend and use again.

A 5 people company based on hard work and dedication with large experience in construction

Latest homeowner review

Reviewed by Christine on 18/3/2017

Arrived approx 1 hour after phoning. Team of 3 worked hard. Work was a good quality and they stayed late to finish the job. Cleaned well after finishing.

Plumb London

Gas Boiler - Repair in Welwyn

(208) Read reviews

Welcome to Plumb London! We are a family run business established almost 30 years ago and have since become a trusted name in the plumbing, heating, and drainage industry. Our primary focus is to continue building a reliable team to be at the forefront of any household problem that our clients face. At Plumb London, we take pride in providing exceptional service to our clients, and we love hearing their feedback. We understand the stress and inconvenience that comes with household issues. That's why we offer a range of services that include plumbing, boiler replacements, electrical, and general maintenance repairs. Our team is made up of skilled professionals who are passionate about solving problems and ensuring your home is functional and comfortable. We take pride in being a local company and offering competitive rates that won't break the bank. Additionally, we have a team of reputable electricians, gas safe engineers, bathroom fitters, and decorators that can offer you a complete package for your home improvement needs. Our commitment to delivering quality results has earned us a reputation as one of London’s most reliable and trustworthy service providers. We are proud to have a loyal client base who trusts us to provide quick and efficient solutions for all their household needs. If you're looking for a reliable and experienced team to handle your plumbing, heating, or drainage issues, look no further than Plumb London. Contact us today on the number provided on our profile, and let our family help your family. We invite you to visit our website or social media platforms, where you can read reviews and see examples of our work. Thank you for choosing Plumb London and we look forward to serving you!

Latest homeowner review

Reviewed by Mark on 12/2/2025

My Company name angrej construction LTD All types of construction ?work

Latest homeowner review

Reviewed by Mohammed on 1/2/2025

Myhome Maintenance aims to improve and transform your home to meet your highest requirements.We offer inside and out your home services.Painting and decoration,gardening and refurbishing your home with a qualified and friendly team.we listen and we care

Latest homeowner review

Reviewed by David on 11/10/2018

Very fast and reliable.

Microgen have been in heating and plumbing industry for many years. We are a family owned nationwide business,who have engineers living in your area all are qualified in all forms of heating and plumbing and are members of all associations .cheers

Latest homeowner review

Reviewed by Alison on 4/11/2015

Highly recommended. Very helpful and work completed to a high standard.

If you're in need of some home improvements, with over 20 years of experience. We would love to hear your project requirements and we can make it happen for you. For each of our services, we have an experienced supply chain that will work alongside us to handle your project with detail and care. We can tailor the most effective solutions to ensure any project is completed with quality, purpose and cost in mind.

Latest homeowner review

Reviewed by Elizabeth on 7/3/2025

Valdi repainted and touched up my flat. He was excellent from start to finish; he communicated clearly, completed the work in a timely manner and went over and above to ensure the work was completed to a high standard. He was helpful and responsive throughout, and I would happily use his services again.

Greenwich Heating Solutions Ltd Heating, Cooling & Renewables Experts | Covering South East England Gas Safe Registered | F-Gas Certified | Fully Insured | 10+ Years Experience About Us At Greenwich Heating Solutions Ltd, we deliver high-quality, energy-efficient heating and cooling solutions for homeowners across the South East of England. With over a decade of experience, we’ve built a reputation for reliable service, expert installations, and honest advice. Whether it’s a new boiler, an air source heat pump, or a domestic air conditioning system, our team works to the highest standards — every time. We don’t cut corners. We don’t upsell what you don’t need. We focus on what works best for your home and your budget. Our Services - Boiler Replacements & New Boiler Installations - Air Source Heat Pumps (Install, Repair, Service) - Domestic Air Conditioning (Install, Repair, Service) - Heat Pump Readiness Assessments - Smart Controls & Thermostat Installation - General Plumbing & Heating Work Why Choose Us? 5-star rated customer service Fully qualified and insured engineers Transparent quotes with no hidden charges Professional, clean and tidy on every job Friendly and honest local team Covering Kent, Sussex, Surrey, South London & beyond Get in Touch Today Need a new boiler, thinking of going green, or just want a quick AC repair? Call us today for a free quote or request a visit — we’re happy to help.

Latest homeowner review

Reviewed by Julie on 10/1/2024

Josh did a great job in installing a new boiler and smart thermostat. Turned up on time, completed the job to my satisfaction and left the area clean and tidy. Easy to contact and good communication, so much so I have rebooked him for more work

Masterteck Repair is a hard surface repair and French Polishing specialist.

Latest homeowner review

Reviewed by Paul on 9/11/2016

Job was to sand the floor of our flat and we set a price. After asking for more they guaranteed to finish for the extra price. A day later they pulled out of the job leaving it un finished. They said it was due to a black tar like substance. they said they had tried everything. My painter and decorator took a torch and scrapper and had it up in minutes. They had the wrong tools and seemed like first flooring job. After contacting asking to finish he said he would get back to me but failed to be reached.

Latest homeowner review

Reviewed by Dally on 18/7/2009

An exceptional job of refurbishing my bathroom from start to finish, James was reliable, honest and professional at all times. Work carried out through to completion exceeded my expectations. Workmanship is of a high standard and I will be using James for further projects I have yet to do. Thanks James.

Sami Furniss

Gas Boiler - Repair in Welwyn

I am a fully qualifed NVQ level 2 plumber, Ive worked in the plumbing indestry for nearly three years now from bathroom fitting to general plumbing maintance. I am workimg for a plumbing, gas and central heating company at the moment and am lookimg to take on some extra work in my spare time

Latest homeowner review

Reviewed by A on 22/6/2020

Issue fixed

We are domestic and Commerical Gas & Heating Engineers from London/Essex & Hertford so no area is to far and no Job is to small! We pride ourselves on Honest Hard Work, Aesthetics (which you can see by having a look at my pictures and a Great attitude) By contacting us for Work you you will be promised to receive a very high sasitfaction level, Competitive prices and of course a smile on arrival! Hope to hear from you soon, Davis Plumbing And Heating Services Vaillant accredited installers Ideal accredited installers

Latest homeowner review

Reviewed by Sheril on 19/1/2021

I've nothing against this professional - He tried to fix the problem, but it was a difficult job and beyond his capabilities - As it also was for a subsequent engineer! Therefore, I advertised for an extremely skilled engineer who took on the challenge and after many hours and a few renewed parts got it working.

In partnership with our sister company Sigma Home Cover we are bringing to market from April 2024 the finest, never seen before home cover, the emergency plumbing, heating and gas home cover homeowner's, landlord's and business's have been crying out for...

Latest homeowner review

Reviewed by Peter on 8/3/2024

Previously known by E.Z.P.Z. Construction Ltd. This company was founded in 2022 and was named after my late father and my newborn son. With over (now) 15 years experience, I started work with my father as well as working for other firms. The content you see on my page are all from current or previous projects.

Latest homeowner review

Reviewed by David on 24/8/2023

Excellent workmanship on both the fence and the patio. The team were very prompt and gave a competitive quote and helpfully sources materials and guided our choices. Very pleased to have chosen them and we would definitely have the back for further work. We'd recommend them.

2M Construction is a London based family business and we pride ourselves on our diverse portfolio, including different kind of projects in the residential sector. 2mconstruction co uk

Latest homeowner review

Reviewed by Nina on 23/11/2022

Did a great job, very efficient and completed installing a shower unit, light and door in one day. Highly recommend.

Hello! We are a team of tradesmen who work hard to make building ideas a reality. With all our commitment and skills, our work is up to a high standard. Full refurbishment, extensions, lofts. Feel free to ask for a quote. Anytime you are welcome.

Latest homeowner review

Reviewed by Yinka on 14/2/2025

Very conscientious, I’m Well impressed with how Professional and reliable Oleg was and this is 6 months after he finished the job.

Water Trade and Build Trade Services have been established for over 17 years. We are ready to assist with your Building, maintenance or plumbing projects. We are fully insured and directly employ our team of skilled tradesmen.

Latest homeowner review

Reviewed by Helene on 1/4/2020

Once the initial contact was firmly established with "the office" everything went smoothly, efficiently and with professionalism.

Mr Block

Gas Boiler - Repair in Welwyn

Latest homeowner review

Reviewed by biswa on 5/9/2012

Good Job Rob

Latest homeowner review

Reviewed by Roy on 19/6/2013

Highly recommended.

We are a reliable construction company located in London, offering a wide range of construction work, including house refurbishment, loft conversion, extension, carpentry, plastering, tiling and much more. We deliver our promise to make our clients happy

Latest homeowner review

Reviewed by Ms on 8/5/2022

Great builder. Makes everything look easy and a real hard worker. Very happy with the work undertaken. Quick work done to a fantastic standard. Finally found a builder who is as good at the start as at the end. Really good job done. I've already asked him to quote for another job!

TYBIM

Gas Boiler - Repair in Welwyn

TYBIM is a well-established company which has built up a first-class reputation in the construction and property maintenance sector by successfully delivering high-quality services and projects. Our core values are quality and efficiency.

Latest homeowner review

Reviewed by Howard on 9/12/2018

(The work turned out to be considerably larger than originally thought). Everything about this company was excellent. There were no extra charged. I would recommend these people based on our experience with them.

Always there for you!

Latest homeowner review

Reviewed by Lynsey on 2/5/2017

The workman was very quick to come out and replace the seal on my bath. One month later, the seal lifted and needed to be done again. I have called, texted, left voicemails and still have not managed to get the workman to come back round to replace. I have now given up and learnt to reseal the bath myself. Therefore, I have unfortunately had to change the rating and comments of this job.

BFF Heating

Gas Boiler - Repair in Welwyn

We are a local company with over 30 years experience in all types of Plumbing and Heating, Gas safe (corgi) registered for a long time as you can see from our very low gas safe registration number..... 39310 ! I trained as a teenager in My Fathers Business when I left School, worked as an apprentice for His Plumbers and Gas Engineers (1 of of them was my Uncle) until - I went to college and Studied to Be Qualified Myself. After 10yrs working for my Dads Company firstly as a Plumber then after 5 yrs Got my Gas qualification. A little over 4 years after that, I made the Step to Work for myself and be my own Boss, and Now my eldest son is now also training to be a plumber and renewables specialist. Also Both of My Brothers are Gas Safe Engineers -Keeping up the family Tradition That My Grandfather Started. Now I am training my son in the trade!

Latest homeowner review

Reviewed by Akif on 12/6/2023

Just called once and not returned and now job is closed as well. Can’t even repost

Good afternoon we due all types of work : Carpentry , Tiling , Woodfloor , Painting , Plastering - Render . Can you contact me for free quotes. Thank you

Latest homeowner review

Reviewed by Shwetang on 24/2/2025

????? “Absolutely thrilled with our en-suite renovation! The team was professional, efficient, and flexible. From day one to completion, the process was seamless, and the quality of workmanship was incredible. Our new en-suite is stylish, functional, and beyond what we imagined. Highly recommend!”

We are a qualified team in general building. We respect our tasks as well as our aim is to provide quality work at all times

Latest homeowner review

Reviewed by Nik on 6/11/2020

Andrew and his team did a complete gut out, redesign and extension to our house, the work was completed a year ago but I forgot to write a review. 3 new bathrooms, new plumbing, electric, everything. The work was completed to a very high standard and he said he guaranteed it, and in the last 9 months, any issue that has come up he has come over within days and repaired anything immediately. Very honest and reliable builder

Dynamo plumbing and heating is a trusted, professional firm of heating engineers based in St Albans with 12 years experience in central heating installation, servicing and repair. When you are looking for a heating specialist it is essential that you find engineers who prioritise safety and high standards. We specialise in all types of central heating systems and plumbing work. All of our engineers hold recognised trade qualifications such as nvq lvl 2 and 3 in plumbing and heating , wras approved and unvented We are proud of our team of engineers and promote best practice in everything we do.With over 12 years in the industry we are able to provide solutions to most plumbing and heating problems including: - General Plumbing -1st fix plumbing -2nd fix plumbing -Maintenance and repair plumbing - Garden taps - shower replacements - Boiler Installation - Power Flushing - Central Heating Maintenance - Central Heating Upgrade - Radiator Installation - Unvented Systems - Hot Water Cylinders - Cold water tanks - Safety Certificates - Landlord Certificates

Latest homeowner review

Reviewed by Takunda on 25/11/2020

Cow boys

Hi my name is Craig Harwood. I've been a plumber for over 20 years and have good knowledge of all aspects of plumbing. I also have experience with some other trades as I come from a family of builders. I pride myself on being reliable, honest and have a high standard of work.

Latest homeowner review

Reviewed by Neve on 20/9/2016

Craig did an amazing job on my bathroom! He went out of his way to get everything done on time and was neat and extremely efficient. He charged me more than fairly for a such high standard of work and I couldn't be happier with the results. Craig is very friendly and reliable and I would highly recommend him to anyone without hesitation.

Latest homeowner review

Reviewed by Allan on 10/10/2010

Good quality tradesman and will use John again

Latest homeowner review

Reviewed by TIDINGS on 23/4/2012

good work

Latest homeowner review

Reviewed by Benjamin on 21/1/2012

Ricky arrive propmtly, assessed the job quickly and was able to complete it in short time, in failing light. Very happy with the work that was done.

Ziyad Construction with over 15 years of experience in the Construction industry, We carry out all aspects of Domestic/Commercial building works to the highest standards. Services include plumbing, carpentry, brickwork, loft conversions, extensions, house renovations, painting/decorating, plastering and all other general building works.

Latest homeowner review

Reviewed by Roger on 5/11/2024

Pump installation for a lack luster shower. Sorted well. Now have a powerful shower. Thankyou.

We are a family run business with over 30 years in the plumbing & heating industry. We are experienced in all aspects of plumbing from small repairs to full commercial heating systems. Recommendations & references are openly available.

Latest homeowner review

Reviewed by John on 4/2/2014

Tommy did an excellent job, was prompt and quick and very reasonable on price. He is a friendly and professional guy and I have no hesitation recommending him.

Latest homeowner review

Reviewed by Donovan` on 14/7/2012

Quoted and arrived on time, we never proceeded with the work but there is no option to remove job or decline without filling this in. Have written to Rated people...the Plonkers didn't respond. Rated people t ssers

SJM Plumbing

Gas Boiler - Repair in Welwyn

Latest homeowner review

Reviewed by victoria on 19/6/2012

Steve was fast to respond and very helpful and arrived on time and came back to finish on time.

Our young team will make your dreams of a stylish, high end home become a reality. The team is made up of qualified and professional individuals that take pride in what they do.

Latest homeowner review

Reviewed by Sam on 3/4/2018

Review for Evaluation and Pricing process only (quotes needed) Reliable team with clear professional experience. Meeting on set time with no surprises. Proper detailed work offer and everything explained in details.

Specialist in Boiler Replacements, Repairs, Services, central heating installs, bathroom upgrades, refurbishments,

Latest homeowner review

Reviewed by Zac on 18/5/2021

Great guys, completed the work whilst I was away and left it clean and tidy. Would use again.

Latest homeowner review

Reviewed by Nora on 31/1/2014

Justin was an absolutely star, sourcing all.the materials, fitting a large walk in shower screen and charging a fair rate. open, honest and a quick worker. just wish I'd found him sooner! he even left us a tube of bathroom sealer for free! highly recommended.

Latest homeowner review

Reviewed by Tony on 2/4/2012

Mel's work was exellent and he was very genuine. A great find!

B M Plastic & Building Services is a well-established building - maintenance and landscaping company working in Essex and the surrounding area's, having completed many successful projects.

Latest homeowner review

Reviewed by Graham on 16/11/2017

We had bob and his team, jack and ryan in to do a dining room extention on the back of the house, also decking and a pagoda built. We are so pleased, they did an amazing job. Top quality. They were there every morning when they said they would turn up, everything was explained as it went along. Cleaned up every night.we cant recommend B&M Plastics enough. They were brilliant. Only builders we would ever use now if we needed work doing. A massive thank you to all that worked on our dining room and garden.

1988

Gas Boiler - Repair in Welwyn

(110) Read reviews

Hi. Here at 1988 we are a family run business with over 25 years experience. Our engineer is fully equipped and has a fully stocked van to deal with your plumbing jobs anytime day or night. We have worked all over london and south east dealing with anything from emergency leaks to full installations. We are very competitivly priced and offer excellent customer service. We take a lot of pride in the work we carry out and at short notice if needed. Nothing is more important to us than keeping our well earned reputation. Our services include but are not limited to new installations, reactive call outs, maintenance, legionnaires reports, shower repairs and replacements, toilets, basins, baths, kitchen sinks, taps, saniflos, waate pipe replacements, stopcocks, watermain repairs and replacements, manholes, gullies, guttering and soil stacks. Dont hesitate to contact us and we will be happy to assist you.

Latest homeowner review

Reviewed by Neil on 7/2/2023

How our service works

  • Create a job - it's free

    We'll connect you with the right tradesperson, from over 30 different trades.

  • Get quotes

    Up to 3 tradespeople can provide a quote, but on average you'll get 1-2.

  • Check ratings

    Look at each tradesperson's profile page to see their ratings and reviews.

  • Pick a tradesperson

    Use our homeowner checklist for extra tips on choosing a tradesperson.

  • Job done

    Leave a rating for your tradesperson based on quality, reliability and value.


Recently completed jobs

Here's what's been happening in and around your area

Boiler Repair: No Hot Water or...

Service: Hot water / heating / boiler not working Taps have hot water: No Radiators heat up: No Boiler make: Don't know BOILER WHEN ON MAKES A LOT...

Boiler inspection and repair...

Hi there. Our Potterton Prima F gas boiler is connected to a Drayton LP522 programmer (both in the kitchen) and a Honeywell room stat (lobby wall)....

Boiler repair and...

Service: Hot water / heating / boiler not working Taps have hot water: No Radiators heat up: No Boiler make: Baxi My heating system needs...

boiler repair and heating...

Service: Hot water / heating / boiler not working Taps have hot water: No Radiators heat up: No Boiler make: Worcester Bosch My boiler has just...

Glow Worm Flexicom - F 09...

I have a "glow worm flexicom sx" gas boiler. It sometimes goes to Error code "F 09" and stops. I need to either reset or power cycle the boiler to get...

Boiler repair: Glow-worm...

Service: Hot water / heating / boiler not working Taps have hot water: Yes Radiators heat up: Yes Boiler make: Glow-worm I have a "glow worm...

Water dripping out of bottom...

A small amount of dripping water is falling from the bottom of the gas boiler. Repair which probably requires replacing a seal is necessary. A service...

Fit New gas boiler flue

Remove existing gas boiler flue which has a hole in it. Fit new flue.

Swimming pool gas boiler...

The pilot light in my Jandy Legacy swimming pool gas boiler will not stay on. Can you fix it please.

The main radiator is only l...

The main radiator is only lukewarm when the rest of the system is fine. System needs a drain and maybe a pump upgrade

How our service works

  1. Create a job - it's free

    We'll connect you with the right tradespeople, from over 30 different trades.

  2. Get quotes

    Up to 3 tradespeople can provide a quote, but on average you'll get 1-2.

  3. Check ratings

    Look at each tradesperson's profile to see their ratings and reviews.

  4. Pick a tradesperson

    Use our homeowner checklist for extra tips on choosing a tradesperson.

  5. Job done

    Leave a rating for your tradesperson based on quality, reliablity and value.

app-icon

Get our app for homeowners

  • Send messages and get notifications from tradespeople
  • Add photos to get more accurate quotes
  • View tradespeople’s profiles