The quick way to find a local Single / Double Glazing specialist in Welwyn

Rated People

Single / Double Glazing

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Loft conversion specialist, with 25 years worth of experience.

Conserv-A-Tech

Single / Double Glazing

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We are a specialist local company dedicated in the construction of Conservatories, Orangeries, Glazed solid tiled roof extensions, Garage Conversions, Energy rated Windows & Doors, Bi-folding Doors, Composite Doors.

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Reviewed by Jeffery on 3/1/2015

Would recommend to use them

PCN ELECTRICAL LTD

Single / Double Glazing

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Our company offers comprehensive services including full house rewiring, extensions, handyman services, and various other building works.

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Reviewed by Martina on 25/9/2024

Christian was excellent! He finished a tiling, grouting and finishing when my previous contractor went AWOL. He has excellent attention to detail and was super tidy. I would have no hesitation in recommending and will be calling on him again should I need any more jobs completed. 5 ??

APEX WINDOWS LIMITED

Single / Double Glazing

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Apex Windows. UPVC Window, Door and Conservatory Installers Apex Windows has been established since 1989 and we have vast experience in installing of PVC-u windows, doors and conservatories. We firmly believe that customers should be able to price their own windows, which is why we openly advertise our prices on our website and have a price calculator. We also advertise the same great prices on Google, Facebook, Which and on the sides of our vans - if you see one, give us a call! We are also happy to visit you in your own home and show you how we work out the cost of your windows, something unique within our industry. This makes the process an enjoyable experience rather than being exposed to high pressure sales techniques adopted by some other companies. We are also a FENSA Registered Company and all installations are registered with FENSA and a certificate issued to our customers. As well as our 10 Year comprehensive guarantee you are also issued with a 10 Year Insurance Backed Warranty. This gives our customers the peace of mind required when placing their order. Please take a look at our website and Trust-a-Trader/Which/Checkatrade/Trustpilot profils to see testimonials from our many happy customers. Apex Windows Search for "Apex Windows double glazing" in your area!

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Reviewed by Sonny on 10/3/2026

excelent have now used them over three times on different projects.... cannot be beaten on price, quality and customer service

Build To Precision

Single / Double Glazing

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Build to Precision Group brings over 20 years of experience in the construction industry, delivering high-quality workmanship across residential and commercial projects. Building on this solid foundation, we have recently expanded into a dedicated maintenance division, offering reliable, efficient, and professional property maintenance services to meet our clients’ ongoing needs.

nicuABRU.SERVICE LTD

Single / Double Glazing

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NICUABRU SERVICES LTD is a company formed over 7 years ago, specialized in flats, houses renovation and house extensions. Our aim is to provide good quality services at a reasonable price and customer satisfaction is crucia

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Reviewed by TONY on 3/12/2024

Fantastic work, above and beyond what we asked them to do. Very happy with the finished job, done quickly too. Also great advice on other aspects of the refurb. Would definitely want to use the guys again. Thanks Nicu and Daro.

Unhinged Locksmith & Glazing Ltd

Single / Double Glazing

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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.

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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.

Precise Installations

Single / Double Glazing

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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.

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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.

Luis Domi

Single / Double Glazing

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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.

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Reviewed by Joe on 7/6/2026

Work done efficiently. Tidied up the mess after the work. I will recommend him.

MB bricklaying services

Single / Double Glazing

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I have been in the trade for many years, (17 years) I have recently gone on my own, and my business is doing really well, I take pride in my work and it's what I enjoy doing. I always hit my targets and it's shown because my business is doing brilliant

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Reviewed by Jonny on 29/6/2026

Martin did an incredible job of putting up my curtain poles and I’d recommend him to anyone in need of a handy man.

JAC Sealants

Single / Double Glazing

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Professional sealant applicator (mastic man) Over 10 years experience Work completed to high standard

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Reviewed by Kaj on 27/8/2025

Hub Joinery

Single / Double Glazing

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We are small independently owned joinery. We use only the highest quality materials, incorporating Accoya, the world's leading high tech timber and install our timber box sash windows to exacting standards. We also offer a full joinery and design services.

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Reviewed by Georgina on 8/12/2015

We haven't actually started the job yet but we've seen examples of his work and are in no doubt that he will be doing a good job. Very friendly and professional and got back to us with a quote and information extremely quickly.

Custom Trade Windows Ltd

Single / Double Glazing

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Custom Trade Windows is a manufacturer and specialist supplier to the trade of premium PVC,Aluminium and Timber windows and doors for London and South East England . We also supply nationally direct top trade and public.

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Reviewed by Josephine on 24/1/2018

Amazing service From Alen and his team. His quote beat the competition by far, but without any compromise on the windows. We were only planning to have new wooden double glazed windows for the front of the house, but were actually able to have new windows for the whole house. Alen also made suggestions which we had not thought about. He said we would have beautiful new windows and he has delivered. Clean, polite and kept informed throughout the process. Wholeheartedly recommended.

J&W Fabrication and Construction

Single / Double Glazing

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Family run fabrication and welding business and construction company offering all types of manufacturing and installation that works closely with our clients our aim is to provide fabrication and welding solutions also building construction with honesty and quality also help to complete project on time

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Reviewed by tina on 3/6/2025

What an amazing job John did. He is a very talented ironworker . Our gate looks like it was made for our house . Would highly recommend .

AYG Construction Ltd

Single / Double Glazing

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I highly recommend AYG Construction , very good job quickly done very reasonable quote, thanks to Adrian for his hard work. Finished double storey extension on time and very helpful throughout.Excellent quality and price. Welcome back any time. Thank you!

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Reviewed by Mark on 20/1/2016

Adrian and his team met or exceeded my expectations, always willing to match my needs and finished the job on time and within budget.

Constantin Popa

Single / Double Glazing

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

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Reviewed by Darren on 11/8/2023

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

Ivory Co

Single / Double Glazing

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Here at Ivory we are a family run business which has gained an excellent reputation as a supplier and installer of UPVC and Aluminium Windows and Doors. We supply and install bespoke double glazing with you in mind. No Job is too big or small so please do not hesitate to contact us via our Email or Phone number.

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Reviewed by Anthony on 6/3/2020

Very disappointed indeed. No attention to detail. Would never use again.

AK Home Improvements

Single / Double Glazing

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A one-stop-shop for all your home improvements & construction needs. We are team of professionals people with over 10 years of experience in all areas of building works. Our services include extensions, loft conversions, home improvements including but not limited to bathroom & kitchen installation, painting & decorating, plastering & skimming, wood flooring, carpet fitting, tiling, carpentry, electrical and plumbing services. We believe in providing a excellent service at an affordable price.

BATEKRIS LTD

Single / Double Glazing

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We are a company with years of experience in many trades. We have done commercial and domestic construction and have learned many trades.