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Find Local uPVC Door & Window Fitters in Welwyn, Hertfordshire

There are 486 uPVC Windows & Door specialists in Welwyn, and last month we helped homeowners get quotes for their home improvement jobs.

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Potters Bar Lofts & Extensions We specialize in adding value to your property. With quality workmanship, finished to a high standard. We understand that every home owner has a unique taste and needs. We are a small family run company with many years experience, and we offer an individual service to every costumer. No job to large or to small.

Latest homeowner review

Reviewed by PANOS on 23/7/2023

RELIABLE-PUNCTUAL.-EFFICIENT .STRONGLY RECOMMENDED..

we are a builder specialist over 15 years of experience with liability insurance .

Latest homeowner review

Reviewed by Philip on 25/3/2025

George was prompt, courteous and professional. The decoration work was done efficiently and with attention to detail. A clean and thorough job. I would have no hesitate in recommending him and his team for similar projects.

Wwc windows doors and conservatory’s family run business with 26 years experience

Latest homeowner review

Reviewed by Roxnne on 5/1/2017

Overall I am very happy with the entire experience of dealing with Dolphin Windows. From the start the communication was at an excellent level and I never had to chase for anything. The cost of the windows was very reasonable with no unexpected costs involved. They were also very helpful in suggesting cheaper options for window style choice. The windows were installed on time and they cleaned up very well after the work was complete. All timelines were met through the process. A super job!

Home Build

uPVC Windows & Door in Welwyn

Welcome to home build thank you for visiting my rated people page . We are a family run business specialising in all roofing work including: Re-roofs Flat roofs Slate Tiling Roof moss removed Chimneys Ridge & Hip tiles Lead work and Valleys Upvc fascia, soffits and guttering - cleaned, repaired and renewed. EPDM Rubber roofs. We give free estimates and all work is guaranteed so don’t hesitate and give us a call

Latest homeowner review

Reviewed by Chris on 20/8/2025

SD CARPENTRY

uPVC Windows & Door in Welwyn

All types of carpentry undertaken 15yrs Experience , nvq level 2. Nvq tiling course. building services and property maintenance. Flooring , doors, locks, flat pack, kitchen s , staircase s. Wall floor tiling

Latest homeowner review

Reviewed by Tahir on 29/9/2020

Simon turned up on time and was very helpful in his approach and was allways listening to my needs very impressed by the professionalism shown and dedication towards the job.

Latest homeowner review

Reviewed by kayvon on 9/9/2011

Damion from swift & neatmuilttrader ltd was fantastic!! he came & viewed the chimney, gave me a very reasonable quote, also didn't make a fuss as some other roofers did!! did the work in under 30min.. excellent job, he very professional. will be using him again on other bits around the house! 5 Star.

Abode building contractors London is a highly recommended company with great customer satisfaction. Also we are a great work force who deliver top quality workmen-ship on time and on budget with the respect you would expect towards your project no matter how big or small. From our workforce hope we see you soon!

Latest homeowner review

Reviewed by James on 4/5/2020

Great job, great team, recommend Luke

AVA CONSTRUCTIONS & DECORS LTD have over 14 years experience in building trade. We are Registered member of Federation of Master Builders and TRUSTMARK. We Provide Project Management from which customer could get advantage from Planning to Completion of the project Full refurbishment of properties Extensions , Loft Conversions, kitchens, Bathrooms , Porches, Double Glazing. We have assembled a team of time-served trades and craftsmen who specialise in their own discipline, be it electrical work, plumbing, gas or carpentry, and who will complete your work according to regulations where applicable (with certification for electrical and gas work) and best practices of their skill. We install all branded kitchens including Howdens, Benchmarx, Ikea, Magnet, B&Q , Wickes, Home Base.

Latest homeowner review

Reviewed by Kulbhushan on 6/2/2014

I gone through many builders for my bathroom job and need ideas to sought out leaking and do designing for bathroom no body can help me and said they will come back to me ,Then one of my friend told me about rated people where I post the job get response straight way from mr. Deep who made appointment with me . He is very professional , come on time and give me good ideas as I am 54 he help me out with many things and sought out the bathroom for me . Definitely used him again and recommend to every one .

I do all works, from small jobs to building extensions, loft conversions, decorating and gardening works. Also, I do drainage and plumbing works.

Latest homeowner review

Reviewed by satish on 7/11/2020

Good work but slight delay

Alex Ltd

uPVC Windows & Door in Welwyn

Latest homeowner review

Reviewed by Peter on 27/12/2019

Alex was very good, reliable and workmanship was excellent.

BRIGHTLIFE

uPVC Windows & Door in Welwyn

Bright life? We are a fensa registered company and have been providing the best services to Buckinghamshire and surrounding areas since 2009. Suppling and installing A* rated double glazing at unbeatable prices, superior quality and exceptional customer service are guaranteed when you work with us! We also offer a 10 year warranty on all our product! Supply and install - - windows -doors -conservatories - warm roofs ( guardian roofs)

Latest homeowner review

Reviewed by Andrew on 3/4/2023

Henry was brilliant and put new double-glazing throughout the house. Very efficient and tidied up nicely after the job. Definitely recommend !

With decades of expertise in Sydney and London, our business strategies empower communities and drive innovation.

Latest homeowner review

Reviewed by Valerie on 17/10/2024

Great communication from start to finish. Aaron kept me updated on what the situation was and what he was doing The price quoted didn’t change.

Welcome to Precise Installations. With over 20 years experience in the construction industry, extremely high standards and a focus on customer satisfaction, Precise Installations is the ideal choice for your property upgrade and maintenance needs. We are gas safe registered, so you can relax knowing we will work safely and legally on your gas appliances. We are also fully qualified and insured, to further put your mind at ease whilst we are working to improve your property. Please take a look at our services section for a more detailed list of how we can help to upgrade your home.

Latest homeowner review

Reviewed by nicola on 12/3/2020

What can I say. Darrell is amazing. The workmanship is beyond perfect. Darrell listens to what you want and carries out the job to the highest quality and finish. My boiler has never looked so good. The pipework is beautiful. when british gas put it in I had pipes left right and centre all higgeldy piggledy. Darrell has straightened them up neatly. Thank you Darrell. Brilliant job well done.

With more than 9 years experience in all aspects of carpentry and joinery I am specialised in all types of carpentry services.Reliable, excellent eye for detail and willing to go the extra mile I aim to please my customer and work to a very high standard.

Latest homeowner review

Reviewed by Rona on 22/8/2022

Vlad is very professional, hard working, punctual and extremely efficient. His work is great and as well as his personality, extremely helpful, and reliable! He did all the architrave, skirting boards, door frames from scratch, as well as installing new doors with handles and locks, LED covings, LVT flooring and stairs banister! Can’t praise him enough and will def recommend him and save his number for any future jobs!

We are a team of highly skilled individuals, with a great sense of professionalism and integrity. Our purpose is to deliver the transition from our customer's vision to reality and strive to bring satisfaction and joy with the results of our work. We aim to offer the best possible service while building trust with our clients. Having over a decade experience in the building industry, gives us the possibility to be quick, flexible and efficient.

Latest homeowner review

Reviewed by Zillionz on 2/5/2024

Managing director of the business

Latest homeowner review

Reviewed by Mumtaz on 27/10/2011

Quality---Five stars Value----Five Stars Reliability--Four stars

Latest homeowner review

Reviewed by leanne on 18/1/2012

We used LFC for a rear ground floor extension, this was the 1st time we had undertaken major build work, so we were understandably nervous. LFC made us feel very comfortable, there work was of the highest quality and they worked extremely hard; even tidying up at the end of each day. We were consulted on a regular basis as to how work was proceeding and given options for directions forward. I would thoroughly recommend LFC to anyone in need of build work – large or small, their prices are incredibly good and the dedication and attention to detail are very impressive. Very much look forward to using LFC in the future.

Dimitrov

uPVC Windows & Door in Welwyn

Plastering specialist with over 15 years experience. Professional and very clean work. Quality work.

Latest homeowner review

Reviewed by David on 30/9/2013

Dimitrov work was outstanding. He is a excellent plaster and a great guy who give you plenty of advice. Our lounge and bed room look amazing. Dimitrov is reliable, promt, hard working and honest and he gives receipts for all materials and is rate are very good. We will now be doing all our work on our house. Thanks you Dimitrov. David and TL

i have been in the glass and glazing industry for 35 years and carry out all aspects of repairs and fitting

Latest homeowner review

Reviewed by peter on 9/5/2018

I was very pleased with the whole process, I posted the job, Anthony responded, was in the area and came straight round. He was able to fix my front door there and then. He was very thorough and very knowledgable.

we are new to site but not in the industry, As a family run business we have been in the trade for over 9 years. We pride ourselves on our professional workmanship and competitive rates. We won't be beaten on quotes. London builderss &property maintenance

Latest homeowner review

Reviewed by Joanna on 15/6/2013

Efficient but thorough. The garden was so tidy after they finished. Very curteous and friendly. Highly recommended.

Hello.We are a company with a professional team who works in every part of London.Service's range: -Painting and decorating (high quality)-Partition walls -Demolition -Hydraulic -Plumbing -Electrical -Plastering -Woodwork -Perform emergency situation

Latest homeowner review

Reviewed by adam on 25/8/2018

the gentlemen know his trade and very polite

At Lyca Windows, our goal is to not only help you design and build your dream home, but to make the process easy and enjoyable for you.Our excellent reputation and long list of satisfied clients attest to our superior craftsmanship,honesty and integrity

Latest homeowner review

Reviewed by Rosie on 28/10/2016

Excellent job, the quality of windows is superb, the guys worked clean and tidy after the completion of the work. The price is reasonable, however, we had to change from white to brown colour and this made it a bit more costly, but really nice windows and a sliding balcony door, great gold chrome handles and locks. Lots of neighbours were asking for the tradesman. 1 year after installation a small sill needed a fix, they came straight away. Would highly recommend them.

Shemek

uPVC Windows & Door in Welwyn

Latest homeowner review

Reviewed by chrissy on 3/3/2014

Very happy with the service

.I have my tools for all jobs, I like to work very ordered and responsibility.thanks

Latest homeowner review

Reviewed by Iftikhar on 10/11/2014

Excellent and prompt service, and is cool and calm no matter how big the challenge.

Hello My name is Costel Dumitras. I am a professional kitchen fitter. I have aquired my skillset over the course of a long career both on the Italian and British market. Although my main focus is kitchen fitting, I also undertake a wide range of carpentry jobs such as build in furniture, doors hanging , laminate/hard flooring, skirting boards, architrave, mouldings etc., and general furniture assembling/fitting. I'm very professional, with great hand dexterity and an eye for details. Don't hesitate to get in touch!

Latest homeowner review

Reviewed by Shamara on 6/3/2023

Did the job quickly and efficiently!

Hello it’s Herta Construction Ltd, we area builders in the London area. We specialise in extension, loft conversion, bathroom renovation, kitchen renovation, all types of roofs, carpentry and much more. Me and our team will put together high spec finishes at fairly low cost. My cost will be broken down and clear for the client to see. More than happy to do quotes for large or small jobs. We have a number of references in the area and I am more than happy to share them with you. I believe our work speaks for itself so please get in touch. Thanks.

Latest homeowner review

Reviewed by Nicolaus on 14/3/2025

We are a family run business with over 25 years experiance we pride ourselves on being friendly fast and efficient as well as clean and tidy all work is fully G/teed and insured

Latest homeowner review

Reviewed by Nick on 24/8/2015

Brilliant tidy work. Very happy! Thank you

We are the suppliers and installers of UPVC double glazing windows and doors. We also specialise in locksmith and double glazing repairs with the highest levels of customer satisfaction & we will do everything we can to meet your expectations.

Latest homeowner review

Reviewed by Jonathan on 16/12/2016

Great service. I was very happy!

Over 30 years in the industry and covering all aspects. Internal and external works, big and small. Have been doing lots of internal refurbs including kitchens and bathrooms , more recently. Multi skilled tradesman.

Latest homeowner review

Reviewed by Francine on 3/5/2024

SOLARCO

uPVC Windows & Door in Welwyn

Latest homeowner review

Reviewed by Karl on 13/7/2019

Bogumil was very efficient, he responded quickly to my advert of laying laminate flooring. He undertook the work the next day and done a great job. Clean and tidy, and was happy to get on with the job, he didn't even stop for a cup of tea. I'll be sure to use his services again.

jabrickwork

uPVC Windows & Door in Welwyn

hello, we are a small building service . clean tidy friendly tradesmen specializing in small building projects. high standard of quality assured. city n guilds time served tradesmen.

Latest homeowner review

Reviewed by Elisabeth on 5/10/2024

Very nice and pleasant, quick and competent, has a remarkably good sense of aesthetics.

Latest homeowner review

Reviewed by Sawan on 30/9/2015

Great service and value for money. Arrived promptly and did a great job. Would recommend anyone.

Luis Domi

uPVC Windows & Door in Welwyn

Expert in glazing with 7 years experience. All of the trades and services offered can be completed, in addition, splashbacks, balustrades and anything mirror related is also included. All work is carried out to a perfect standard. I pride myself in building good customer relations and catering to a customers needs and wants.

Latest homeowner review

Reviewed by Gary on 6/5/2025

Luis and partner were great to work with. We need 6 double glazed windows replaced. They were quick to respond to the initial job posting and were nice and clear with their communication. The price was very competitive and the delivery time and job completion was very quick. I have no hesitation I highly recommending them.

For Quality, Security and Energy efficiency call us we will provide free quote 5 Star Glazing Ltd. our products are covered by our 10 year Insurance backed guarantee Terms and conditions apply and installed by our highly trained fitting teams.

Latest homeowner review

Reviewed by Erol on 11/2/2025

Truly fantastic customer service. Removed all existing windows and door, replacing them with brand new materials. The team did not stop from the moment they arrived until the completion. Extremely polite and nothing was too much trouble. Excellent value for money, could not recommend them highly enough.

We are a local independent locksmith and glazing company with over 10 years experience. All of our engineers are accredited and trained highly. All of engineers are fully DBS checked and we have a public liability.

Latest homeowner review

Reviewed by Deborah on 13/5/2024

Gave an honest appraisal of the door which will need replacing and still managed to get the lock to work as a short term measure. Many thanks.

We are a team with over 10 years experience in the building industry, specialists in kitchen and bathroom fitting, as well as all aspects of interior finishing. Our NVQ qualified team, professionally deliver high quality projects on time. Check our instagram @nse_carpentry

Latest homeowner review

Reviewed by Grant on 19/4/2025

Still in the process of getting the job done but Alex has been reliable and honest throughout. I have every confidence that the job will be completed at the price quoted (lower than other quotes) and to an excellent standard.

We are a small family run business with years of experience in house maintenance services, specialised in windows, glazing and doors repairs and replacements. We are a professional and friendly team aiming to work closely with clients, understanding their specific needs, Safe Contractor accredited. Good communication and reliability are the keys to unlock a smooth experience.

Latest homeowner review

Reviewed by Kevin on 14/2/2025

Excellent Admin and communication. Very helpful! Very friendly, competent and helpful workforce too. Will definitely use IN&G Services again!

Hello, my name is Anthony, but you can call me Tony, I've been working for myself now for just over Ten year's I've only just joined this site. Hence, no ratings trying to recover all old photos of my old phone, which i broke in lock down.ive never needed to advertise work found me.. now everything is online, so I wanted to give this site a try,I don't dress to impress I dress to work...I'm 48 my to kids are now 28,30 two lovely grandkids Tony

Latest homeowner review

Reviewed by Jason on 16/8/2025

Windowerx

uPVC Windows & Door in Welwyn

sashes, doors & Casement renovation ~ Draught-proofing ~ Cill-replacments ~ Locks ~ Architectural-Ironmongery ~ Bespoke joinery ~ Slim-line glass units ~ Acoustic treatment ~ Door panic hardware ~ Fire-proofing ~ Architectural-glazing ~ Closers & springs.

Latest homeowner review

Reviewed by Cyril on 13/1/2017

Samuel is not just efficient and professional, he's also great at keeping you up to date and talking you though what he's doing. It was a pleasure to see him work and I'll keep his number for anything in the future

Thank you for visiting TS Building Works, my name is Tomas and I will be happy to help with any of your enquiries.

Latest homeowner review

Reviewed by Maryam on 6/4/2019

Tomas was very punctual, polite and efficient. He did a good job of what he had given a quote for and I would recommend him. My only suggestion to the highly skilled Tomas is that it might be a good idea in future to let clients, who do not share his expertise, know what else could/should be done to make the final result absolutely perfect. The client could then decide whether to opt for further work, based on a revised quote, or leave it at what she/he had originally asked a quote for.

GAS Roofing

uPVC Windows & Door in Welwyn

GAS Roofing is a small family run company set up to provide a excellent roofing service at affordable prices to all.

Latest homeowner review

Reviewed by Tracey on 12/2/2011

Very jpleased with the work our garage roof is now sealed and not leaking. Good value for money in our opinion. They were reliable and turned up when they said they would and also took all the rubbish away with them. We would recommend them.

Based in East London, professional team S N Build Ltd provides high-quality services to all. We’re one of the most professional companies in the local area and our home improvement services are always undertaken by experienced decorators. From soft landscaping to painting and decorating, we transform the inside and outside of your home to ensure everything is installed to match your specifications. Some of our services include: Building Repairs Tiling Painting and Decorating Carpentry Plastering Wallpapering Brick work Cleaning Services Construction Services Refurbishment Work Loft Conversions All Handyman Services Insurance Claims The services we provide are great for commercial and domestic customers.From quality construction services, cleaning and Handyman service we offer a great work and always tidy up when we’re done. Honest company, skilled builders and we use our life time experience to serve you effectively. Always agree with great prices for our clients! As specialists in construction we are more than happy to cover every aspect of your project! We make your dream come true.

Latest homeowner review

Reviewed by Azher on 19/4/2019

Excellent work. Very efficient and did it in quick time. Will call again

CPL is a window and door repair company. With years of experience in the trade you can be sure our trusted technician is highly skilled in all aspects of window/door maintenance, completing all jobs to a high standard. We offer free, no obligation quotes. With a visit to your property, we'll be able to asses the work which needs carrying out and either give you a quote on the spot or email one to you on the next working day. With our quick response time from initial contact, we'll be with you efficiently to assess the work and provide you with a resolution face-to-face, over the phone or via email.

Latest homeowner review

Reviewed by George on 8/10/2019

Very quick and efficient service. Thanks

Transform

uPVC Windows & Door in Welwyn

Property Maintenance and Renovation

Latest homeowner review

Reviewed by Andy on 12/11/2021

All i can say is amazing ... arrived early workmanship was beyond belief and a really nice guy .

Eldex

uPVC Windows & Door in Welwyn

Latest homeowner review

Reviewed by Michael on 12/8/2011

Excellent work, very clean and tidy and a truly proffesional finish.i have dealt with quite a few builders over the years and have had none better than Eldex. I will definately use again in the future.

T.D.C.M

uPVC Windows & Door in Welwyn

Latest homeowner review

Reviewed by Matthew on 29/7/2012

Nick and his team do a great job. They helped us take down a huge hedge, build fencing and a play area, carry out earthworks, and much more. Nice guys. They arrived when they said they would, did a good job, worked cleanly, were very clear on price and costs, and were proactive at dealing with issues. Very happy to recommend them .

Latest homeowner review

Reviewed by Lucy on 14/8/2017

Excellent work. Polite. Clean working practices. Extremely knowledgeable. Would use again

Founded in 2004 PMH Construction is now located in Milton Keynes with premises in St Albans, we cover all surrounding areas. We are members of the federation of master builders, specialising in providing a number of building services to both existing properties and new builds. As established builders in Milton Keynes, we pride ourselves on our experience and quality of our workmanship.

Latest homeowner review

Reviewed by NIGEL on 9/3/2017

Pat and his team have done an excellent job. We are very pleased with the result. There has always been clear communication and timely project management of the build. The team have always been helpful and responsive, with real care of the quality of the work done and attention to detail. Pat has always strived to minimise the impact to us and neighbours whilst the work has been done. We can highly recommend PMH based on our experience.

Latest homeowner review

Reviewed by Richard on 21/8/2012

A great job, we are very, very pleased. Many thanks.

Hello, My name is Deyan Hristov. We are a reliable company with 15 years' experience of quality repair solutions for your homes. We have been creating homes, that bring joy and satisfaction to our clients in London and surrounding areas. Our team of experienced traders offer a comprehensive range of services for all the internal refurbishments. Let us to give you a hand to achieve a best result. DH BATHROOMS & KITCHENS LTD offer: - TILING - PLUMBING - CARPENTRY - KITCHENS AND BATHROOMS RENOVATION - WET ROOMS - ALL ASPECT OF FLOORS -PAINTING and DECORATING - LOFT CONVERSION - NEW BUILD -etc. WE OFFER FREE QUOTATIONS AND GUARANTEED HIGH QUALITY RESULTS FOR REASONABLE PRICES.

Latest homeowner review

Reviewed by Gheorghe on 4/2/2021

Very good quality and the best price

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Recently completed jobs

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

To fix 3 upvc Windows where...

To fix 3 upvc Windows where the handles and locks are jammed and cannot close properly

We require 3 windows to be...

We require 3 windows to be replaced in a flat located on the second floor of a block built in 1995 in Welwyn garden city. The property has wooden...

We require 4x new casement...

We require 4x new casement windows with double glazing to be provided and installed and possibly a patio door. Window sizes 2400...

We want to replace a french...

We want to replace a french patio door (approx. 2.5 m wide), a single-glazed window (approx. 1.2 x 1.2 m) and one double-glazed window with a broken...

Replace existing windows

To supply and fit the following: x1 white uPVC bay window (consisting of 3 windows) x7 white uPVC windows x1 uPVC door with side windows 'A' rated...

It is a repair. The glass is...

It is a repair. The glass is broken

Kitchen door and patio doors...

New kitchen door and new patio doors in front room

Upvc French doors dropped,...

Double doors have dropped leaving a gap at the top causing a draught

Replacement circular window...

We have a circular window in our upstairs bathroom that needs to be replaced with a new one that we already have.

Quote needed to replace uPVC...

Quote needed to replace uPVC double glazed windows

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

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  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.

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