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 802 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

At Insta Plumbing and Heating Services our mission is to provide our customers with professional services. We offer plumbing, bathroom remodelling, water and sewer mains, drain cleaning, leak detection, water heaters, boilers and more. As part of our standard service, we can have our professional plumbers and technicians come to assist you immediately. Whether is is a simple or complicated service we get the job done. Our company consist of a team of individuals with the necessary skills to assist you. Although our company is new to Rated People, our plumbers are dedicated experienced professionals.

Latest homeowner review

Reviewed by James on 23/7/2025

Excellent work. Came when agreed, carried out the work with no fuss and the final bill was even a little under the original quote. I now have a fully tested central heating system which will work as it should when winter comes. Would definitely use Nour again.

Welcome to Ellis Carter, your trusted partner for all your renovation, plastering and decorating needs. As a dedicated team of professionals, we take great pride in providing quality services with attention to detail and customer satisfaction at the forefront. We understand that every project is unique and deserves the utmost care and precision, whether you require a wall decorated, plastered or full property renovation, we strive to deliver impeccable results that exceed your expectations.

Latest homeowner review

Reviewed by Tim on 8/12/2021

Craig did a great job! Quick and clean!

We are a family run domestic heating contractor with over 50 years combined experience. We pride our self in delivering professional, safe & competitively priced heating installations.

Latest homeowner review

Reviewed by graham on 28/1/2017

Very polite and profesional engineer

I have 15 years experience with the heating and plumbing trade and have worked for some of the major company’s (including an apprenticeship and 5 years at British Gas) so my experience has been second to none, all work is carried out to the highest standard while still keeping my rates affordable, All work is guaranteed for a year My services include Service and repairs on all gas appliances Installation of all gas appliances Cylinder replacement Radiator replacement/installation Underfloor heating Smart room stats Powerflushing Landlords and home owner certificates Plumbing repairs Bathroom installation

Latest homeowner review

Reviewed by Sabahat on 17/1/2025

Job well done at reasonable cost. Highly Recommended

First heating and Property is a dedicated firm we are friendly reliable and clean with 15 years experience we offer a rapid response and are more than happy to work around your schedule We take great pride on our commitment to take on any jobs in our list

Latest homeowner review

Reviewed by Michael on 21/2/2019

Did a good job!

CHAP plumbing and heating is a small reliable company which prides itself on quality, punctuality and price. We cover all aspects of plumbing and heating ranging from changing taps to full bathroom installations, radiator valves to full central heating installations, we do boiler breakdown and repair and are available 24 hours a day 7 days a week. Please do not hesitate call

Latest homeowner review

Reviewed by Nicola on 7/11/2018

Would definitely recommend.

Friendly gas engineer and general maintenance with over 6 years experience. fully insured and CRB/DBS checked

Latest homeowner review

Reviewed by Simon on 2/5/2015

very pleased..great job.

Domestic and commercial electrical contractors with over 18 years experience. Fast, realiable and resonable. Full NICEIC Accredited. Specialist in boiler/heating controls and smart thermostats. Hive, Heatmiser, Nest and Tado installer.

Latest homeowner review

Reviewed by kevin on 30/8/2022

JOB PURPOSE: To provide an effective service to our customers; domestic and commercial, meeting agreed standards of service and company objectives. Offer solutions to meet the needs of the customer and the business. JOB SUMMARY: To carry out emergency and planned water supply repairs. Trace, locate and excavate in order to ascertain where leaks are, using a selection of equipment, including Moling equipment, Cat and Jenny, listening stick, trace wire and refit insuducts where necessary. To relay mains pipe

Gastrade

Gas Boiler - Repair in Welwyn

Gas Safe Registered, City & Guilds certified Plumber, Qualified professional work done at affordable cost.

Latest homeowner review

Reviewed by Steve on 7/4/2017

Excellent in all areas

B.S. Builders LTD, We are a family new business company with 15 years of experience in UK and Europe based in London. We take over jobs such as Lofts, Extension,Full Renovation, Doors, Floor, Kitchen, Bathroom, Electrics, Plumbing and general building jobs. We are experienced builders over 7 years in UK looking slowly to create their own family company which can provide services all over London’s area. Our slogan is “Engineering your dreams withs us” and you can achieve that if you trust us. Or objective is you to feel happy after the job is done. If you have something based on our criteria we’ll be happy to partner. Thank you for your time.

Latest homeowner review

Reviewed by Enea on 30/11/2019

Good job, good final working project

Friendly and reliable, fully qualified plumbing specialists with over 10 years experience in the business. We hold Gas Safe qualifications and full public liability insurance.

Latest homeowner review

Reviewed by Dominic on 10/11/2018

Excellent. Highly recommended.

Latest homeowner review

Reviewed by adam on 1/11/2018

i was bit reluctant as they were new on ratedppl initially but they done an excellent job,very knowledgeable and professional services and rate was very very competitive

AJ GAS

Gas Boiler - Repair in Welwyn

Hi, my name is Abel. I am a gas gas engineer from London. I mainly fit cooking appliances (gas and electric) I also work for curry’s as their gas engineer. I have partners I also work with that do boilers and plumbing work. I take pride in my job and always make sure I leave everything safe and my customers happy. I always try to go above and beyond and do my best to help my customers. I’m flexible, punctual and up for negotiation. We also have REMOVAL company for man and van jobs. Everything is insured.

Latest homeowner review

Reviewed by Helen on 7/8/2023

Professional, did a good job

Latest homeowner review

Reviewed by Simon on 21/2/2012

very quick

I am Gas Safe qualified heating engineer. all aspects of heating, boilers, powerflush specialist.

Latest homeowner review

Reviewed by M on 4/10/2020

Here I would like to thank Adam for his proffissional work. He is very through, very meticulous, very good in his appointments and very decent in his prices. He is also very informative if you ask him about the job details. I would recommend for similar jobs and certainly I shall look for him if I got a problem with central heating.

Latest homeowner review

Reviewed by christopher on 6/3/2008

Brilliant job! Diagnosed and fixed the problem very quickly. Can't recommend highly enough.

A+ Boilers

Gas Boiler - Repair in Welwyn

I'm Dean a friendly Gas Safe engineer and Plumber with 16 years experience. I'm efficient and reliable, with Boiler installs, Landlord Safety Inspections, Boiler Services and repairs, Power Flushing which helps the heating system last longer. Fitting Magnetic Filters, Radiators, Taps, Showers, Pumps, Cylinders, Immersions, Toilets, Baths, Water Tanks, Motorised valves, Basins and Kitchens all work undertaken.

Latest homeowner review

Reviewed by susan on 3/11/2016

Genuine Professional Tradesman

Hello. I am a self-employed trade man with 13 years experience in wall and floor tiling. I have knowledge about bathrooms refurbishment, painting work, plumbing pipe work, handyman and Floorlayer.

Latest homeowner review

Reviewed by lizzie on 19/7/2020

Absolutely a professional, friendly and 100% knows he's job. Job was done to perfection and I am so happy with the outcome. Would recommend

Latest homeowner review

Reviewed by Clerkin on 30/12/2014

Initially a very prompt response, very tidy as the works proceeded and delivered a high quality of workmanship. Really pleased with the finished works and further advice given on following trades. Thank You.

At Ignite heating we provide a friendly, reliable, fully qualified service. I am British Gas trained and have 25 years experience working with gas appliances old and new. I pride myself on very competitive prices whilst maintaining great standards

Latest homeowner review

Reviewed by Paul on 12/10/2021

Warren was helpful and able to fix our issue during the visit. He was able to explain to me what had caused it and how to resolve going forward.

At PlumbCentral, I offer affordable boiler installations without compromising on quality. I ensure that every installation is carried out to the highest standard, making sure your system is both efficient and reliable. My goal is to ensure you are completely satisfied with the work, providing you with peace of mind and a warm, comfortable home. With PlumbCentral, top-notch service and client satisfaction always come first. At PlumbCentral, I offer gas boiler repairs at affordable prices to ensure that every client can maintain a safe and efficient heating system without breaking the bank. I take pride in delivering reliable and high-quality repairs, so you can rest easy knowing your boiler is in good hands. My goal is to ensure you are fully satisfied with both the service and the value provided. At PlumbCentral, I handle all plumbing needs, no matter the size—whether it's fixing a tiny leak or taking on a major repair. I take immense pride in delivering quality work with precision and care, ensuring your plumbing runs smoothly and efficiently. My pricing is designed to be affordable, so you get top-notch service without breaking the bank. Trust PlumbCentral to bring expertise, dedication, and great value to every job!

Latest homeowner review

Reviewed by Neil on 9/2/2025

A-TECH BUILDING SERVICES LTD is a building company based in St Albans & Toddington, we are a family run business who pride ourselves on our workmanship. All our staff are time served and have many years experience in their given trade. Please see our website.

Latest homeowner review

Reviewed by Tola on 18/2/2025

Very professional and timely and did a great job connecting everything properly for us. Very grateful. Restored my faith in tradesmen.

Tring based electrical and property maintenance company with over 15 years experience in the building and construction industry including commercial industrial and domestic.

Latest homeowner review

Reviewed by Robert on 18/11/2012

Jason done the job no messing around very reliable would recommend top electrician

We are a company with over 15 years of experience in a building and electrical services. The company is a NICEIC Part P registered domestic installer. We are approved by Trust Mark government-backed shceme which help to find reputable firms.

Latest homeowner review

Reviewed by Jamie on 1/5/2019

Communication from Marian was great and he was able to visit and look at the problem very quickly. He did a great job and went out of his way to make sure the work was carried out quickly during unsociable hours. Will certainly use him again in the future.

Latest homeowner review

Reviewed by Gerald on 31/5/2013

Knows what he is doing, happy with the work done.

We have been working in the local area since 1999, working alongside housing associations, lettings & estate agents. We have professional trades people with over 30 years of experience. We cover all painting & decorating, fitting of kitchens & bathrooms, tiling & floor coverings, fascias, soffits & guttering as well as all maintenance issues.

Latest homeowner review

Reviewed by Christina on 19/12/2018

Scott and his team have been today and started the work we want done over the next couple of months. Great start, really pleased with what was done today and based on this would definitely recommend and we will certainly be using Haycroft in the future.

CMVDL LTD

Gas Boiler - Repair in Welwyn

Latest homeowner review

Reviewed by Joshua on 17/6/2013

very good, they were on time, and they even waited for me to go to Ikea and get an extra part due to Ikea missing parts in the package. Would definitely recommend their services.

Latest homeowner review

Reviewed by Christine on 8/1/2014

Complete bathroom / shower room / cloack room refurb. Job wasn't done by Voytek himself and so we had issues, HOWEVER Voytek provided a first class after care and resolved ALL our issues to high standard at no additional cost!. Very reliable and honest, which is very hard to say about any tradesman after a job is completed. I would recommend Voytek no problem.

The Plumber

Gas Boiler - Repair in Welwyn

upfront, honest and reliable, no hidden costs 12 month guarentees, free quotations, we go the extra mile to make you happy ,very aproachable ....

Latest homeowner review

Reviewed by Carly on 7/12/2017

John was amazing! Complete perfectionist!! He turned up on time and didn’t leave until everything was done and I was happy!! definitely recommend

Your local electrical specialist.

Latest homeowner review

Reviewed by Omar on 22/5/2022

They done a good job

Latest homeowner review

Reviewed by Alan on 27/2/2013

An efficient and reasonably priced service, happy to recommend. We will certainly use this company again for future work.

Latest homeowner review

Reviewed by mary on 19/7/2012

Most impressed, they were on time, veryclean and very effecient.....thank you.

Latest homeowner review

Reviewed by Alison on 23/3/2013

Efficient, friendly service and a quick, good job completed 2 days after I put my job on Rated People! I was very pleased.

We are a family run business with a long history of domestic heating and plumbing experience, we take pride in our work, offering tailor made solutions to every installation and repair.

Latest homeowner review

Reviewed by Ben on 23/12/2013

Brian was a breath of fresh air - friendly flexible and efficient but best of all completely honest.

i am a tradesman with over forty years experiance in the trade the last ten years i have been contracted to british gas doing central heating installations.over the last ten years alone i have installed upwards of a thousand boilers for british gas.

Latest homeowner review

Reviewed by greg on 3/7/2013

A great guy that turns up when he says he will. Cleans up and did the tasks I required with no problems. Top class and I will use again. Didnt have time to fit a trap but arranged another day and was done within 30 mins.

We are a family business with 35 yrs of building.We are very hardworking/polite/clean and tidy. 95% of our work comes through recommendations.We have a large portfolio of works with many client references.All are work force our fully qualified. .

Latest homeowner review

Reviewed by Medha on 24/5/2014

It is a 5 star rating. He gave my stairs a new look. He started the job on time and completed on time. He did not leave any mess. Reliable. The oak stairs is just very elegant and chic. Thank you Sean. Highly recommended.

Plumbtek

Gas Boiler - Repair in Welwyn

Plumbtek can take care of ALL Plumbing an Heating requirements, Boiler install & service to plumbing projects from start to finish. We consult with the customer on whats required, and ensure project is 100% complete. We also offer a 24/7 service

Latest homeowner review

Reviewed by kate on 31/7/2017

Did exactly what I wanted, no fuss, no mess. At the quoted price.

T Murphy Construction LTD is a family run business with over 30 years experience. We have a dedicated team of experienced and skilled tradesmen with City & Guilds qualifications. We have expertise in carrying out all forms of commercial and domestic work.

Latest homeowner review

Reviewed by Edward on 21/3/2014

Thanks Tom for a great job.

HM Services

Gas Boiler - Repair in Welwyn

HM Services specialise in all gas work: boilers installation, servicing, heating configuration and troubleshooting as well as plumbing works and many other jobs to help you in maintain your home is a trouble place to live...

Latest homeowner review

Reviewed by Neighla on 23/11/2016

After 3 months, the floor is now feeling lumpy and uneven in some areas. It will likely need to be redone

Amar Flora

Gas Boiler - Repair in Welwyn

Latest homeowner review

Reviewed by David on 8/12/2017

Best plumber/heating engineer by a country mile. Honest and reliable Will tell you exactly what you need to fix the problem

Latest homeowner review

Reviewed by Wayne on 20/9/2013

We had Lee and James in to fit a stove and liner. Very happy with their work, they arrived on time and the job was spot on! couldn't praise them enough, highly recommended thanks guys.

Latest homeowner review

Reviewed by Terry on 11/6/2013

Quick, competent and reasonably priced, already getting them to quote on other work. Will use again

TIMIS&CO

Gas Boiler - Repair in Welwyn

I am a qualified plumber and gas engineer. My qualifications are:NVQ level 1,2 and 3,technical certificate level 3,unvented cylinders,wet ufh,electrical part P and gas ccn1, ckr1 and cenwat. We offer a quality ,reliable,friendly and quick service.

Latest homeowner review

Reviewed by Juliet on 13/6/2013

Excellent service with the job being done to a good standard. Would definitely use again and recommend to others.

I am a local indepenent plumber with over 30 years Plumbing experience in both domestic and commercial plumbing. I charge no call out charge and offer free estimates and advice.

Latest homeowner review

Reviewed by Hannah on 19/6/2013

Excellent work. Many thanks

We are a friendly and reliable team who pride ourselves on providing high quality workmanship.We are devoted to our responsibilities towards customers and always deliver of high quality finish on time and to the budget. Our aim is “customer satisfaction”

Latest homeowner review

Reviewed by Paplu on 15/11/2017

Artur replaced our kitchen worktop and installed our integrated appliances. Artur is very a meticulous professional that understands your needs and your desired high quality end finish without you having to explain the job thoroughly. Artur had always been available for questions and is someone you can rely on for advise. I would highly recommend him

We are here to tackle your to-do list for you. This way you can be sure the job is done right and you don't have to waste your free time.

Latest homeowner review

Reviewed by S on 28/1/2016

Excellent workmanship. Was on time, very organised and did more than what I had asked for at very fair price ! Will definitely call him again.

Hi, We are ufh specialists. We are able to do all underfloor heating systems.

Latest homeowner review

Reviewed by Nikayla on 13/10/2017

Michael came to our house at 5.30pm to fit our under floor heating in 3 rooms at very short notice. He arrived promptly and couldn't have been more helpful. He refitted our insulation as it had been put down wrong by our builder with no problem at all. He stayed until the job was complete which was 1.30am! we was so grateful, Really nice guy, very clean.

Wojtek

Gas Boiler - Repair in Welwyn

Latest homeowner review

Reviewed by Nejat on 5/5/2017

Wajciech Oleszczuk, came with his colleague,bothe were punctual, polite,and efficient and honest. The job was more complicated than I thought. I am happy to ask for him again All the best

Latest homeowner review

Reviewed by Scott on 20/5/2018

Very good. Left my property tidy, having completed my works quickly and to a high quality.

Hi i am a full time plumber i do my own private jobs after work and on weekends, i am hard working and dedicated to fulfilling my clients expectations of what work needs to be carried out and to a high standard. Quality does not have to be compromised on a budget so Don't be afraid to ask questions. I am a very reasonable and approachable person. I have a lot of connections with other trades as well as my own so any job is possible. No job is too big or too small

Latest homeowner review

Reviewed by Julie on 19/5/2025

Good job done. Friendly efficient service.

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