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 Damp Proofing specialist in Welwyn, Hertfordshire

There are 292 Damp Proofing specialists in Welwyn, and last month we helped homeowners get quotes for their home improvement jobs.

Browse Damp Proofing specialists in Welwyn, Hertfordshire

Take a look at our Damp Proofing specialists profiles, read reviews and request quotes directly.

Please specify a location
Please specify a trade

Hi I am BrightWorkPro i am An Expert in Properties Maintanance, Painting, Repairs, Bathrooms, Electric and plumbing GARDENING Clarence and domestic cleaning!! Loft conversions, Extensions anything related to building constructions due to over 5 years experience in property maintenance management. i am very flexible and ready for ACTION!!

Latest homeowner review

Reviewed by Nikita on 11/5/2022

Akoni is a building company who can provide you with peace of mind and satisfaction. Our primary aim is to make sure our clients are respected and listened too with what they want to achieve. Over 20 years experience previously known as Aquafix which was predominantly bathrooms and heating systems. We branched out into our own developments and renovations. We now cover all trades and can supply you with the best results. All trades are fully qualified with years and years of experience. We aim to work closely with our clients from start to finish and use some great designers, architects, and structural engineers to help the process easy and take the stress away from you.

Latest homeowner review

Reviewed by Tom on 9/4/2025

Dan and his team were truly exceptional from start to finish! A very talented and highly professional team that made sure we were actively engaged on every step of a large project, covering nearly every trade possible, with one clear and obvious intention - to make all of our aspirations come true. The attention to detail on every aspect was superb, alongside excellent craftmanship delivering a tremendous finish. The Team were punctual, very friendly, always enjoyable to have in our home! Highly recommended

Need extension, loft conversion, new basement, waterproofing or damp proofing, swimming pool or garden office, full house renovation? Call Us for a free quote.

Latest homeowner review

Reviewed by Jayne on 30/5/2013

DPS did an excellent job. They were transparent in their explanations, communicative, punctual and left the place spotless! Excellent work ethic and workmanship.

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.

We specialise in structural works, underpinning, steelwork and basements. Our experienced team are also experts in damp control, waterproofing and tanking solutions and all our work is guaranteed, offering our clients complete peace of mind.

Latest homeowner review

Reviewed by Lisa on 9/3/2023

We had a retaining wall fixed in our basement. Kevin was great at communicating and helpful with the issues we had. The team working were great, polite, and kept the place clean and tidy each day. Very reliable. Thanks!

We offer a local family run roofing and building business through out East Anglia and surrounding areas reprises on self good workmanship and great customer care With all our work we carry out the full list high standards that we can a offer on building great customer lations ship and carrying on other work within the future for are customers We offer a small family run roofing and building business in Cambridgeshire We offer all roofing and we undertake building work and roofing works We love what we do and our aim is to ensure we provide the highest level of workmanship undertaken to ensure customers have their requirements fulfilled to standards standards Roofing work Flat roofs re-roofing roofing repairs Lead flashing and lead work We offer wide range wooden and upvc facias soffits guttering windows and doors Wooden cladding and hardy board cladding well upvc cladding Building work Repointing wall and chimneys Repairs parapet wall Painting and staining wooden doors windows facias soffits and cladding repair render work My team has over 25 years experience in this trade’s all our work comes with a guarantee

Latest homeowner review

Reviewed by Mrs on 20/7/2016

I can not rate workmanship as they did not win the job but very professional

We are a family owned business specialising in weatherproof wall coatings and render repairs and finishes. We have been refurbishing wall exteriors for over 35 years, providing a high quality service, all of our work is priced fairly and guaranteed. Our wallcoatings are particularly effective in coastal areas and on wall surfaces that open to wind driven rain We also offer Dryzone treatments to combat rising damp issues

Latest homeowner review

Reviewed by Rachel on 26/5/2019

We can't recommend Arbiter Coatings enough! Bill was extremely helpful right from the quote stage to completion of the work. He offered us a solution to covering up the fake stone front of our home to give us the exact result we had hoped for when no-one else could. Don't be put off if you are a distance away from where Bill is based as Arbiter Coatings travelled a long way to us and had other jobs in our area, We can see why these guys are in high demand.

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!

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.

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

Latest homeowner review

Reviewed by Mohammed on 1/2/2025

With close to two decades of experience in construction and repairs, Arpad Construction is your trusted partner for excellence. Our skilled team delivers high-quality work with unmatched efficiency and attention to detail. From full renovations to precision repairs, we ensure every project is completed to the highest standard. Reliable. Experienced. Professional. Choose Arpad Construction.

Latest homeowner review

Reviewed by Lashan on 5/5/2025

Worked clean and tidy. Explained everything thoroughly and always double checked everything with me. I'm so happy.

EST 1983 Family run business 4th generation https://www.cooperandsonroofing.co.uk Here at Cooper & Sons roofing we like to give our customers full confidence in are services, all of are work comes with warranty from 1year to 25years. we take pride in all of are work, each person in are team has gone through the correct training to receive the highest qualification on each task needed. Please look at some of our 5* reviews from are happy customers.

Latest homeowner review

Reviewed by G on 31/5/2025

Jack did a great job in extra short time. He was very thorough and polite. If you want your job done quickly and efficiently you know where to go.

Small bricklayers gang ready for work : Face brickwork,Block work,Garden wall's any design you like. Pointing weather struck,flash. Old stock brickwork,New build brick work, Extensions,driveways.

Latest homeowner review

Reviewed by Landscapes By Jonathan Stollar on 6/5/2021

If you need any brickwork or pointing done then get Vaides to do it.

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.

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.

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.

We have over 15 years experience dealing with property refurbishment and maintenance. You can be confident that we will complete your job on time, on budget and with the correct attitude to get the job done! Rest assured you have come to a trusted name in the business.

Latest homeowner review

Reviewed by Monica on 16/4/2013

Were polite and friendly. They did a good job.

Welcome to the W. Hardy Drainage Solutions Ltd rated people page. Operating out of Basildon, we undertake services as a drainage & plumbing contractor throughout Essex, including Southend, Chelmsford and Romford, as well as the Greater London area. We cover every aspect of drainage and plumbing works for clients in the domestic, commercial and industrial sectors. From responsive emergency drainage and plumbing to planned CCTV drainage surveys and bathrooms our team has the experience and expertise to handle any circumstances with the utmost professionalism. Whether you require a drain unblocker to work on blocked toilets or a specialist with state-of-the-art surveying equipment to carry out spot repairs, W. Hardy Drainage Solutions remains the trusted drainage contractor for Essex and London. You can also find us on Instagram & Facebook.

Latest homeowner review

Reviewed by Joe on 10/2/2024

Really pleased with the work done.

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.

Roofing contractor . Other work undertaken

Latest homeowner review

Reviewed by Vicky on 1/12/2023

TREATEXWALL COATINGS LTD EXTEROR WALL RESTORATION SPECIALIST. WE SPECIALISE IN WALL COATINGS DAMP PROOFING, EXTERNAL RENDERING, PEBBLE DASHING, RE POINTING EXTERIOR WALL REFERBISHMENT, EXTERIOR DECORATION, UPVC GUTTER AND FACIA REPLACEMENT WE HAVE BEEN WORKING ON CUSTOMERS HOMES AND BUISNESS FOR OVER 20 YEARS WITH AN EXCELLENT PROVEN TRACK RECORD WITH 100s OF CUSTOMER REVIEWS ALL OVER THE INTERNET ALL WORK COMES FULLY GUARANTEED AND WE DO NOT USE SUB CONTRACTORS

Latest homeowner review

Reviewed by Richard on 8/11/2023

Hello, I am Steven, the proud owner of the Roofing company and property maintenance also known the Roofing company. We are a family run business and pride ourselves on customer satisfaction and fantastic workmanship. We specialise in all kinds of roofing new and old all Repairs with over 22 years’ experience in the trade. A little about us With many happy and returning customers over the last 20 years, you can be sure of being well looked after. Our aim is to provide a stress-free project, delivered in a manner that I am confident will exceed your expectations. I work with a small team of trusted colleagues, who communicate and work together well. Our customers often comment that every colleague they interact with is approachable and cheerful; we find that promoting a positive attitude always helps projects run smoothly with good communication throughout. 2-year guarantees are included as standard on all completed work. We have a long-standing reputation Upvc fascia boards, soffits, guttering, downpipes, cladding, supply & fit dry Ridge systems. All types of Roofing new roofs and old roofs Repair new flat roofs roof timbers replaced Ridge tiles replaced Ridge tiles rebedded Ridge tiles reinted hip tiles pointed side verge repointed apex verge repointed valleys rebuilt or repointed chimney remove or rebuild or pointed Availability We are available during working hours, Monday to Saturday. Outside of those hours you are welcome to contact us via email or request a call back. If for any reason you are unable to get through to us, please leave me a message and a colleague will get right back to you. (Please leave your phone number in the voicemail) Thank you for taking the time to consider our company’s profile, I look forward to hearing from you. The roofing company

Latest homeowner review

Reviewed by mark on 27/5/2025

I booked in these guys to replace a slipped tile. I took a day off work to be home on the alotted day and turned down other quotes. They confirmed they would attend when I asked to double check.. Then they stopped replying to messages and they didn't show up on the day. I called and was brushed off with excuses, but they gave no offer of a new time or any further communication. Pathetic service. Would give only 1 star but I can't comment on roofing skills but with their attitude I expect they are not good.

Latest homeowner review

Reviewed by James on 16/7/2017

Very pleased with the plastering work and would highly recommend.

Together with my team we are providing very good services at lowest costs.

Latest homeowner review

Reviewed by Darren on 11/8/2023

Brilliant work, all finished to high standard and finished quickly.

We are a family run company that cover the London and Sussex and Portsmouth Area we are experts at all aspects of property maintenance we pride ourself at delivering a good service that fits into your budget and work with you at all stages to get the finish you want

Latest homeowner review

Reviewed by Rosario on 18/11/2023

They did not solve the problem until now still leaking inside my extension already fit new roof and agreed the amount he asked for. Left the gutter in the main roof without the down pipe. Messaged sent but not hear from JFC .

We deal with insurance claims handling, reinstatement and repairs to any type of reinstatement including damage caused by escape of water, flood and fire damaged properties. We also completed works involving: Non-evasive leak detection. Insurance surveying / Schedules. Damp mapping and drying. Refurbishment and repairs to residential commercial buildings. Replacement kitchens and bathrooms. Plumbing. Plastering. Roofing. Painting and decorating. Asbestos surveys and removal. Carpentry. We are also a member of the The British Damage Management Association (BDMA)

Latest homeowner review

Reviewed by John on 4/3/2023

We are a company that offer a variety of multi skill trade finishes. With over ten years of experience you can feel confident your property is in good hands.

Latest homeowner review

Reviewed by Elena on 25/7/2016

Excellent job and such good value for money.

Rankins Roofing & Building are a family established business with over 30 years in the building/roofing industry. We pride ourself on customer satisfaction. All of our engineers are competent and qualified technicians. We offer free no obligations quotes, all works come with guarantees & we are fully insured.

Latest homeowner review

Reviewed by Alex on 11/3/2025

Seems to have cemented the gable eve alright.

We offer high quality building work all jobs ar fully insurance electric and plumbing coming with certificate jobs available for have look to understand how we work we always leave customers happy

Latest homeowner review

Reviewed by Tot on 11/3/2024

Victor and his team did a great job with fitting the electrics in the kitchen and plasterboarding the kitchen. They left the place clean and was reasonable with the price. I will certainly use them again.

Unlike traditional damp proofing treatments, the SmartDry DryBricks actively remove damp from buildings by exploiting natural airflow to draw moisture out walls, without the need for harmful chemicals or sealants. We install our patented DryBricks on all external walls, so there's no mess inside and no need for redecorating or re-plastering; finally a stress-free solution for your damp issues. Best of all, on average it takes us 1 to 2 days to install. We’ve removed damp from over 30,000 properties throughout Europe and offer our Lifetime Guarantee on our installations. We offer natural solutions for a natural problem. Call us for a free, no-obligation, survey today!

Latest homeowner review

Reviewed by Hannah on 28/10/2019

Great service. Slightly on the expensive side as they had a minimum charge for their jobs but the service and work were excellent.

Robeco 2010 Ltd : Rendering,Plastering , Tiling, Drylining,Drywall &Insulation -Residential -Commercial ,Extensions,Loft Conversations

Latest homeowner review

Reviewed by George on 22/11/2017

Rob and his team did a really high quality job and we are very pleased with the end result (and I am the son of a builder, so my expectations were high to start with).. The finish is excellent on the render and the quality is constant through what was a fairly large rendering job on my detached house. The team were tidy and worked hard to the deadline throughout the process. If you need a high quality rendering job, then I would highly recommending considering Rob's services.

Latest homeowner review

Reviewed by Seren on 25/11/2012

Very hardworking and good quality for money

Latest homeowner review

Reviewed by Michelle on 22/11/2011

This was more expensive than I'd hoped but he seemed to be fair and trustworthy and did an excellent job, promptly. It has just rained and no leaky roof any more so a successful job! Would recommend

Latest homeowner review

Reviewed by Andrew on 28/8/2012

satisfactory work

Latest homeowner review

Reviewed by Sunny on 14/1/2016

We are a local church in London providing food bank and coffee mornings twice a week for the homeless. We requested for a complete repair of Fibre-glass roof which had licks Eclipse Roofing took £4000.00 pound for a complete repair and gave us 20 year warranty. The roof still lick and we have water everywhere. Fibre Matt was not installed the old Fibre not removed.presently we have had to suspend the coffee mornings because of licks to roof. We have consulted our lawyers and Citizen advise bureau.

Shield Maintenance A1. Consist of multi skilled tradesmen with a vast amount of experience. From carpenters plumbers roofers, electrians,groundwork. We cover all services in the building trade and take pride in our work and service that we provide.

Latest homeowner review

Reviewed by Hubert on 30/7/2024

Really positive experience overall so far.

I am a NVQ level 3 carpenter with 12 years experience. I am knowledgeable in all types of 1st and 2nd fix carpentry and most general building. I have experience is fencing and all garden renovation.

Latest homeowner review

Reviewed by Karen on 15/4/2018

I am very disappointed with the service received from SKK construction. Whilst Sean did come and give us a reasonable quote, he failed to deliver! He cancelled our first appointment 15 minutes before the set time, but rearranged another date for the following week. The second time he did not arrive and failed to respond to texts. This is an appalling service- if a trades person does not want a job, they should just say they are not interested. His failure to turn up has ruined plans for 2 weekends .

Latest homeowner review

Reviewed by Laura on 24/2/2014

Sebastian moved several pieces of furniture for us and put together some furniture and attached it to the wall securely. He is considerate, careful, friendly and does a thorough job. He arrives on time and does a great job. Would definitely use him again.

Latest homeowner review

Reviewed by bob on 3/11/2012

poor communications

At R&R Excavating & Landscaping LTD ?, we provide expert hard landscaping services, specializing in patios, driveways, drainage solutions, and stump removal. Our skilled team is equipped to handle all aspects of outdoor projects, including precision digger work and custom stone installations. Whether you need a beautifully designed patio, a durable driveway, or efficient drainage and stump removal, we deliver high-quality results tailored to your needs. Committed to exceptional craftsmanship and customer satisfaction, we ensure every project is completed with professionalism and attention to detail.

Latest homeowner review

Reviewed by Lisa on 23/11/2024

Didn’t dig the end I asked to be dug. And now they won’t answer my calls or messages

We have over 15 years experience in the building trade and want our costumers to be happy. We are happy to come and do the smaller jobs as well as extensions, damp proofing and painting and decorating. We are honest and professional.

Latest homeowner review

Reviewed by Jas on 10/3/2019

Robert from K and B building services made multiple calls to make an initial appt with us. We agreed a time and date. He didn’t even turn up for the first meeting to quote or even discuss the job! How are these people allowed to sell their services on these types of sites. Absolutely shocking !

Latest homeowner review

Reviewed by Juliana on 10/9/2012

Never sent estimate. Did come to see the job

contract or domestic upholstery re-upholstery or made to measure banquet seating or domestic sofas we can visit you with fabric range free of charge, or you send a photo via email and we will give a price pubs clubs restaurants and domestic catered for

Personally I’ve been in the building industry for 20 years as a team combined over a 100 years we specialise in damp proofing and drylining but normally take buildings from shells to finished plastered happy to work on price or day rates depending on what works for the customers also can guarantee and insure works when needed

LPSL

Damp Proofing in Welwyn

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

Need my garage water proofing

The damp is coming up through the floor of my garage

Damp Proofer - needed to check...

Just moved into a 3 bedroom house, a couple of rooms have worry damp patch in the top corners of 2 upstair rooms.

I've recently had a new carpet...

I've recently had a new carpet installed in a first floor bedroom and damp is now appearing on the inside wall. This wall is the end of terrace...

Repair & treat damp in walls

We have damp along what used to be an outside wall before an extension. The damp rises to about 4 feet on 1 wall but on the other(we have a walkway...

Damp on internal lounge wall

I would like someone to check what the problem is and why it is there and to treat it so it doesn’t return

Condensation in loft

We have recently had a double story extension done and since the work has been completed we have had a lot of condensation forming on the loft roof...

Advice on damp in our home ie...

We need to understand if we need to insert a damp course into our home or lower the ground outside. Built in 1922

We have recently had a...

We have recently had a homebuyers report completed on a property and there looks to be damp within the whole back of the property. Could we get a...

damp proofer

look for a plasterer/ damp proofer to come and work with our family run business. must have own tools and van. work is in north London and...

Wood Burner & Chimney lining

Require an experienced professional to line a chimney and check current wood burner is fit for purpose.

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