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Find Local uPVC Door & Window Fitters in Welwyn, Hertfordshire

There are 494 uPVC Windows & Door specialists in Welwyn, and last month we helped homeowners get quotes for their home improvement jobs.

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STBS SOLUTIONS LTD Based in North London All about single,double and secondary glazing, curtain walling, clading and panel installing. We are here to help you don't be shy give us a try.

Latest homeowner review

Reviewed by Philippa on 20/4/2024

Perfect job in everyway.

(Covid 19) we adhere to regulations in place regarding sanitising and distance keeping / masks we are working fully during these times//We are correct window and door repairs ltd specializing in all double glazing installations and repairs,.WE ARE PROFESSIONAL, EFFICIENT AND VERY RELIABLE. (AS YOU CAN SEE FROM OUR MANY RECOMMENDATIONS) our teams repair all glazing from misted units , hinges ,handles locks for window and doors too.we offer a service second to none from the moment the call is taken to the works being completed our team offer a stress free service.

Latest homeowner review

Reviewed by Tomjedur on 14/8/2024

Excellent professional and efficient work from the team. Great communication.

Hi all, I have been a locksmith/carpenter for 25 years and I am NCFE qualified and fully CRB checked. I can solve all your lock, door, window issues and can open cars and safes. I have covered thousands of jobs in my work and I will solve all your problems in a clean and friendly manner. Locks picked, locks changed to insurance standard, Doors supplied and fitted, windows issues solved. UPVC expert. My son also has his own loft conversion company with his uncle and we can complete any Bespoke Carpentry & Conversions work.

Latest homeowner review

Reviewed by David on 3/5/2025

Great service, quick and did the job exactly as requested. Would highly recommend.

We are in business for last 10 year. we started with motive to keep our customers happy by giving quality works. and we are achieving it as well as have achieved it.We use A rated products, with 10 years guarantee & certificate.We are a member of Fensa We provide best of our services with less compatible prices there are no middle man between us that’s why our prices are very affordable We use German profile(Kommerling) that’s give us lot of confidence to achieve customer satisfaction and recommendations All glass are toughened with compressed gas that’s not allow condensation

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Reviewed by Osa on 3/5/2023

The windows company was very quick, the staff contacted me, came to look at it, and then took it to its office, they fixed it and came to install it, and was brilliant, took him 3hrs, compared to the company that kept me “dancing” for 3weeks…..

24/7 Local Glaziers in London Replace Broken Glass Call us for instant quotes Price beat guarantee No call out fee Same day call-outs Single or Double glazed units Only use Pilkington glass Police & Insurance approved About Us First Direct Glass aim to provide an emergency response better than any other. With fully stocked glaziers we deliver the best service in the industry. Full London coverage ensures you will be sent a local engineer as soon as you need them. Whether you have a domestic or commercial need, First Direct Glass can be sure to help. VAT registered company

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Reviewed by gill on 11/6/2024

Did a good job quickly at a reasonable price, lower than other quotes and was pleasant to deal with. Only criticism is that after waiting some time after the original booking when I thought perhaps he wasn’t coming, I had to text him to find out he was running late. Would have appreciated an earlier notification so I could have popped out had I wanted to. Otherwise full marks

CJ'S Glazing specialise in double / triple glazed windows, doors, bi-folds, porches and conservatories. LITTLE enough to care! BIG enough to deliver

Latest homeowner review

Reviewed by Prabhakar on 11/10/2024

very quick and work carried out efficiently. Would love to get my other work through in near future

General Building ,Refurbishment,renovation Activities.,Established 10 years ago, experience on the domain for 15 years .

Latest homeowner review

Reviewed by Sarah on 5/2/2025

Pavel did an excellent job replacing my broken window pane. He was reliable (arrived when he said he would), polite and efficient. I'll definitely use him again for future work on my property.

tudor

uPVC Windows & Door in Welwyn

hi we are based in queens way, we offering high standard work, a friendly team of carpenters, tilers, plumbers, decorators,certificated corgi, dry liners, carpet layers etc. with over 10 years experience

Latest homeowner review

Reviewed by Eddie on 16/5/2025

Over 15 years experience specialising in Double glazing. We offer supply and fitting for upvc and aluminium windows, upvc and aluminium doors,composite doors, patio doors, by folding doors, and many more. All product and work guaranteed for 10 years. we offer a wealth of skill and knowledge bringing unrivalled expertise to our customers. For your peace of mind we have liability insurance which covers up to £2m

Latest homeowner review

Reviewed by charlie on 28/12/2024

Really pleased with Ibrahim's service. Price was fair, installation was easy and more than happy with the end product. Would recommend. 5 stars!

Since our founding, Greater London Glazing has been known for quality services, exceptional efficiency and the highest level of professionalism. No matter what service you’re looking for, we guarantee to not only meet, but exceed your expectations and ensure your full satisfaction. Our team is up for every job, managing projects with the skill and experience our clients have come to expect. Please get in touch to learn more about our team, our company or for details about the services we provide. Our speciality is our response time, you can get in contact with us and we will have the job lined up within 2 hours. We operate on a delivering the fastest quality of service while still maintaining a high quality

Latest homeowner review

Reviewed by Anna on 14/5/2025

At DavTom, we're all about upgrading your home experience through top-notch doors and windows. With over 10 years in the business, our small, dedicated team—supported by reliable subcontractors—ensures quality and craftsmanship in every project. We don’t just install; we transform spaces, offering a variety of high-quality options to suit your style. Our services include: Doors: Whether you’re drawn to the timeless appeal of traditional front doors, the space-saving charm of bi-fold doors, or the seamless integration of sliding doors, we have the perfect solution to suit your taste and lifestyle. Skylight: Transform your interiors with the magic of natural light. Skylights are designed to bring the beauty of the outdoors inside, creating a bright and airy atmosphere that enhances your home’s ambiance. Conservatories: Meticulously designed to seamlessly integrate with your home, our conservatories offer a tranquil retreat, connecting you with the outdoors while adding a touch of timeless elegance to your property. Glazing: Our double and triple glazing options not only enhance insulation but also minimise noise, creating a serene and energy-efficient environment. Outdoor spaces: Upgrade your backyard with our all-in-one service, covering pergolas, sheds, and decking. Enjoy the cosy charm of pergolas, practical storage with our sheds, and the perfect gathering spot with our decking options. Repair Service: Cover everything from hinges and handles to glazing issues, ensuring your windows and doors remain in peak condition. Trust us for swift and effective solutions that stand the test of time. Let us redefine the way you experience your home!

Latest homeowner review

Reviewed by Christina on 9/9/2024

LJ Glazing

uPVC Windows & Door in Welwyn

LJ Glazing specialise in upvc windows and doors at affordable prices. With over 12 years experience, we pride ourselves on our high quality installations and making it a smooth process from start to finish. As we are a FENSA approved company you can be assured our work is done to a high standard and complies with building regulations. We give insurance backed guarantees for peace of mind when using LJ Glazing

Latest homeowner review

Reviewed by Graeme on 4/9/2023

Communication during the quote phase was patchy, but the price was reasonable and after awarding the job Luke fitted in with our availability, was punctual and courteous and the workmanship was of a good standard. I don’t expect to need him again, as this was a full replacement of windows and doors for the whole

AL Home Improvements we provide good quality work and service at a very affordable price. services range from extensions, loft conversions to house refurbishments no job to small. professional reliable experienced we get the job done at a good price for more information please visit our website tlhomeimprovements

Latest homeowner review

Reviewed by Sophie on 15/3/2019

Very happy with my tiling. Thank you so much

Latest homeowner review

Reviewed by David on 25/2/2012

Job was a new uPVC window for a bathroom. It was quoted for and fitted very efficiently and exactly to spec.

Latest homeowner review

Reviewed by lucy on 4/10/2009

Very quick,efficient, if not a little bit steep financially.

Latest homeowner review

Reviewed by andrew on 3/4/2012

Very reliable, honest, skilled and reasonably priced. I would highly recomend him

Welcome to KP building contractors Ltd trading as KP Projects

Latest homeowner review

Reviewed by sunny on 11/6/2018

Great workmanship. I had previously hired Kam about two years ago for a loft conversion and extension at one of my other property. I'd lost his contact details. Very honest man. Thanks Rated People!

Latest homeowner review

Reviewed by Angie on 6/7/2011

We called out Ambient Solutions and received a quotation for the job within the 24 hours promised – no charge for the call out or the quotation. The work was started and completed on time. I would highly recommend Ambient Solutions for any plumbing job. Thanks Ambient! Angie at Zest ST Ltd

Christian

uPVC Windows & Door in Welwyn

C C D General Building is a company designate to take care of your job from the quote job to the end of it

Latest homeowner review

Reviewed by Sajjad on 1/6/2020

Christian reversed the swing of the door for me in a room. He quoted quickly and his price was fair. He came quickly and did the job well. Would like to work with him in the future

As 10 years experienced with my team of great builders to provide my clients with the Design and Build service: * Extension Builder * Loft Conversion Specialist * New Home Builder * Conversion Specialist * Restoration & Refurb Specialist * Paint & Decoraters * Plumbing & Heating * Kitchen Fitter * Bathroom Fitter * Flooring Fitter * Tiler * Electrician * Insulation Installer * Bricklayer * Groundworker * Architectural Designer * Plaster * Roofer * Garden, Landscaping & Fencing

Latest homeowner review

Reviewed by julia on 8/8/2020

Very happy with the gardening work. Also various other work around the house that he undertook for me. Very accommodating. I will be using this company again

Bathroom and Kitchen specialist with more then 15 yrs experience that offers everything you need to fulfill your house dreams. From the free initial consultation to the laying of the last tile. Modern Designs, Traditional Care,Solutions for Every Budget.

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Reviewed by Jason on 17/1/2019

A++, great work, no problems 2 months later

We are based in Hayes

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Reviewed by Sandeep on 29/8/2020

Excellent job done well within time and at a great price. Had some minor issues after an year, Harpreet was quick to respond and the issues were fixed immediately.

Small Polish building company specialising in loft and kitchen extensions. Save your time and money on any project.

Latest homeowner review

Reviewed by Mell on 7/6/2019

I would highly recommend Marcin as a competent, professional and reliable builder. He has bags of experience and all the tools. His team put my Summer house together in no time and did a great job.

1 CDM Ltd

uPVC Windows & Door in Welwyn

We are a Carpentry and general building contractor with over 8 years experience at your services .

Latest homeowner review

Reviewed by Helen on 21/5/2020

Constantine was really professional and carried out the work as required. I will be definately using them again.

CRYSTAL FIXING LIMITED Carpenter /joiner Floor fitter Window fitter Kitchen specialist

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Reviewed by Mee on 15/7/2023

excellent

Costa Boyer Ltd provides specialist for complete building solutions: house extension/ loft conversion/ replacement windows/ doors/ shops front/ home improvements/ kitchen/ tanking slurry solutions/ garage conversion/ porch/ canopy/conservatory / garden shed/ wooden decking/ parquet/ painted house/ Venetian stucco/ water leak/ 30 years experience building site/ all team have CSCS card/ NVQ Level 2/ NVQ Level 3 supervision/ GQA Qualification Ltd Certificate of achievement in theory of SCHUCO/ GQA Qualification Ltd Certificate of achievement in SCHUCO Curtain Wall/ GQA Level 3 Certificate in glass related operation/ GQA Level 3 NVQ Diploma in Fenestration Installation/ IOSH Working safely a course approved and validated by the Institution of Occupational Safety and Health/ Gold card Constructions Qualifications CSCS / Quality Management & Control accreditation by Mace Business School Limited/ Level 6 NVQ/ SMSTS and new one... Covid-19 Essential: Infection Prevention and PPE

Latest homeowner review

Reviewed by Gareth on 30/6/2021

Costa was excellent. Very friendly, efficient and carried out the work to to a high standard in the agreed timeframe and at the agreed price, despite some unexpected problems along the way. Would happily recommend him.

I specialise in kitchen fitting and all aspects of carpentry work. I have been working in the carpentry industry for over 20 years, plus I've got an NVQ Level 2 in Site Carpentry. I've have now set up my own company, and it's been running for over 8years now.

Latest homeowner review

Reviewed by Martin on 7/12/2022

Kevin did a great job of replacing all my internal doors. Very efficient, clean and tidy at the end of each day and completed work on time and entirely to my satisfaction. Would be happy to recommend.

CH constServices takes great pride in the work we do and the competitive prices we offer. We are always aiming to make sure our customers are satisfied and that they return to us. We are fully guaranteed on any job we do and willing to work any size job.

Latest homeowner review

Reviewed by Andrew on 1/5/2024

Very pleased with the finished results of our flat renovation.

Welcome to HK Plumbing & Property Services. Thank you for choosing us. We provide a first class professional service and we travel throughout greater London and the surrounding areas. HK Plumbing & Property Services is headed by Hicham Khellas, who has a vast range of experience in the plumbing and maintenance industries. Hicham has 15 years of experience in the plumbing field who is confident and guarantees to solve everything from a plumbing related problem to the design of a new bathroom or kitchen with his knowledge. We offer a range of services: - Burst pipes and leaks - Mains water supply pipe replacement - Lead pipe replacement - Complete bathroom and shower installations - Thermostatic showers - Saniflow installations/repairs - Drain pipe - Hot water cylinder installations - Immersion element replaced and repaired - Cold water tank replacement - Power shower installations - Repair taps/replacement - Rain water pipes and guttering - water softeners - Washing machine and dishwasher installations - low water pressure problems - Outside tap installation At HK Plumbing & Property Services we aim to be as competitive on prices and will be happy to match any quote where possible. Please do not hesitate to contact us with any questions you may have. Certifications -City & Guilds Level 2 in Plumbing & Studies -BPEC Corgi Certification -Hot water systems & safety including G3 unvented hws

Latest homeowner review

Reviewed by NOMA on 16/10/2024

Its been a while but i love my bathroom. Great Job, thank you.

We take proud in our work .our priority its our costumer.We undertake all kind of work from small to big projects.For a free estimate do not hezitate to contact us.

Latest homeowner review

Reviewed by Kambiz on 15/5/2024

Very efficient

Roberto Building Services Bathroom and kitchen specialist.

Latest homeowner review

Reviewed by Pauline on 30/12/2024

We were very pleased with our bathroom fixture being installed. Robert was very thorough from start to finish. He explained all what needed to be done. Time scale was on point. Very polite and professional. Thank you Robert ! I will recommend you to friends and family.

We are a construction company dealing in all aspects of building work extensions and home improvements with over 20 years experience. We work to a high standard and work to timelines for our clients. We will also work to Covid government guidelines when working at your property.

Latest homeowner review

Reviewed by Gareth on 29/11/2021

Did a fabulous job on my back yard concrete patio which was crumbling in places and needed levelling. Also suggested adding another step to a rather steep step in place already which made perfect sense and he did a great job with that too. Took 1 day and sent photos of the site after work. Very impressed and very happy with the outcome. I recommend this company and will be using them again on other jobs in the future.

My name is Piotr and I've been in roofing business for the last 8 years. I was doing various jobs in many places. From replacing whole roofs to some minor cosmetic works. I enjoy what I do and I really care about my reputation.

Latest homeowner review

Reviewed by KERRY on 30/9/2016

Excellent job, good price. Really pleased with the result.

Latest homeowner review

Reviewed by Alf on 4/11/2016

Fast, professional job was undertaken for a reasonable price. We are very happy with the end result, and wouldn't hesitate to recommend Terry's services.

At Affordable Windows we believe that our customers' needs are of the utmost importance. Our entire team is committed to meeting those needs. As a result, we are proud to say a high percentage of our business is from repeat customers and referrals.

Latest homeowner review

Reviewed by Samantha on 23/12/2013

Excellent job. Came to quote for the job very efficiently. Very reasonable quote and excellent quote. Very tidy and courteous. I would definitely recommend.

If you are looking for anything from a new extension to a renovation, or down to the smallest job, make sure you get in touch with the expects here at W Peat Development.

Latest homeowner review

Reviewed by Gillian on 6/12/2015

Wayne and his team did a great job, i am very pleased with my fitted wardrobes. They are stunning. i gave good for reliability only because Wayne is so busy it took a while to actually get the guys in to do the job, several months. i love them and they did a good job so worth the wait.

Welcome, Our company offers a complete service starting with first few sketches passing through building regulation approvals and all the steps till those finishing touches ensuring that our customers are fully satisfied.

Latest homeowner review

Reviewed by Syed on 17/12/2015

There isn’t enough space on here to describe how happy I am and stress free Rob and his team made the process. I had a major extension to the rear and side of the home which meant I wasn't able to use the bottom area of my home at all. Rob and his team took care of everything and also provided so much extra help all the time any time and keeping up with the consistent service is truly unmatchable. I’m very happy with the work, the finishing and everything else. Choose Rob and his team and you can’t go wrong

Selyons

uPVC Windows & Door in Welwyn

Latest homeowner review

Reviewed by David on 23/4/2012

Do not be fooled by Stephen's laid back nature and quite approach, the structural building work we asked him to undertake was, once agreed, carried out to the letter, completed on time, to a very high standard and within budget. We would not hesitate using Stephen again for any building work.

Latest homeowner review

Reviewed by Steve on 30/1/2015

Can't fault David's work and attitude. He's top chap and was great value. We're very pleased with the finished job.

Latest homeowner review

Reviewed by koko on 13/8/2013

Did an excellent job, very neat and cleaned up after himself.

We are a local building company in Stevenage. We specialise in garage conversions,Extensions, Porches, Conservatories and Windows and doors.We are new to this site but can supply lots of local recommendations.Written quotes free and no heavy sales pitch.

Latest homeowner review

Reviewed by Katy on 28/3/2014

Had windows and back door replaced today in the lean to. They look great and they were very professional. Will be using them again to have the roof done and will use again in the future. Thanks for a great job

Greetings we are the soul of WELLSELEC, the last 12 years we have been installing designing and running jobs to the satisfaction of my clients on this basis 'people don't care how much you know until they know how much you care'

Latest homeowner review

Reviewed by Stephen on 6/7/2015

Very pleased with all the work done, good communication and the end result was exactly what I wanted to achieve. I would use Matt again, very honest, works hard and has a good attitude towards your project. Big thanks again.

No name

uPVC Windows & Door in Welwyn

Five years of experience, carpentry and joinery, NVQ level 2 diploma, trained in Ealing Hammersmith & West London´s College.

Latest homeowner review

Reviewed by Maria on 2/6/2017

Very good professionals. The work was done quickly and to a high standard. A bit on the expensive side - I payed £400 for installing 3 wardrobe shelves and 2 rails, fixing a broken drawer and the materials. Needed it urgently, otherwise would have shopped around.

Let me build for you a safe place you can call home!

Latest homeowner review

Reviewed by ALAN on 6/4/2023

Fouad and his team did a fantastic job of our Victorian gate and fence, replacing a decayed lock and painting the railings to look like new. He also refreshed our outhouse. Super service, polite, efficient and friendly service. We would definitely use again, thanks Fouad and the team!

Established in 2001, Glass Master Uk is a Family Run business with over 25 years experience that the business owner Philip Baron will use to achieve excellence and the best value for money available for all of our customers. Free Quotes & Fast Service

Latest homeowner review

Reviewed by Chris on 17/7/2017

Great work at a reasonable price

Fully skilled tradesmen in business 30 years free estimates and fully insured all aspects of building & roofing work undertaken very competetive rates

Latest homeowner review

Reviewed by Alan on 2/10/2016

v.Good job and didn't shy away when other problems showed. Stuck to the task and completed the job. highly ??recommended

We are national suppliers of timber sash, casement, French, sliding, bifold windows and doors, bespoke kitchens to individual designs or top styles at two-thirds the price. We install in London, Surrey and the South East. KSWindows & KSKitchens

Latest homeowner review

Reviewed by Ciro on 12/6/2017

We have been really pleased by the interaction with Neil throughout the sales process and then with Konrad and his team preparing and installing the new windows: a really neat job, delivered on time and to specification: I would not hesitate to hire them again...

ROOF TOP CONVERSIONS THE COMPLETE BUILDING COMPANY. WELLCOME TO RTC WE HAVE BEEN CARRYING OUT BUILDING WORKS FOR OVER 25 YEARS. HEAR ARE SOME OF ARE WORKS . LOFT CONVERSIONS+ HOME EXSTENSIONS+ GARAGE CONVERSIONS +

Latest homeowner review

Reviewed by Clive on 23/10/2023

Roger and his crew achieved a complete fire door and frame (with fitments) replacement in a single day. They left my flat clean and tidy and were away by 3.15pm. Great work

Hi I’m Sean from SLS Home improvements I run a my own business for me and my family I love doing gardaning and projects I like to see the end job when it’s completed. I’m friendly and reliable and like to keep all my customers happy. Loads of work undertaken • Painting and decorating • Putting tv on the wall • Hanging shelves • Building flat pack furniture • Patio • Decking • Concrete bases • Tufting • Building sheds • Grass cutting • Hedge cutting • Guttering cleaning • Fence painting • Building flower beds • Patio cleaning • Tree cutting or trimming

Latest homeowner review

Reviewed by Amelia on 7/5/2025

Absolutely brilliant start to finish. So pleased with our finished garden. Highly recommend.

Our mission is to provide professional services and we are dedicated to the customer's satisfaction.

Latest homeowner review

Reviewed by Dan on 1/12/2022

Couldn’t recommend enough. Very hardworking and did a great job painting our living room and laying wood flooring. Everything finished to a high standard. Will definitely be using again!

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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

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  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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