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

TYBIM

Single / Double Glazing

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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.

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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.

BNT CONSTRUCTION LTD

Single / Double Glazing

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BNT Construction ltd offers a full range of construction services. We take pride in offering competitive services at competitive prices. Services ranging from Groundworks to full house refurbishment or home maintenance ,drainage , basements , piling . Also we can pride ourselfs as the fastest and reliable builder as per customer satisfaction . Latest extension completed from the aprovals of documents and council agreement 4 and half weeks thats based on demolishing the existing build and rebuild the entire extension with fitted kitchen underfloor heating etc. Quality and profesionalism are and always be a priority !!!! Team BNT

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Reviewed by Natalie on 14/3/2019

Excellent service! Will definitely use again!

A-TECH BUILDING SERVICES LTD

Single / Double Glazing

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

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Reviewed by Shahim on 21/1/2026

ALEX AND SONS LANDSCAPING, BUILDING AND GARDENING SERVICES

Single / Double Glazing

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We are a reliable and successful company and we provide the quality and the qualification of the work and product which we are doing for you .Our motto is, my customer my boss. We coming for a long journey experience working of 20 years working experience in Spain,Italy, United kingdom and Romania of landscaping industry and inside and outside house design of isolation,consolidation, any work of tiles or painting. We coming with the real quote of the work we try to be in competition with the construction quotations and to make our clients to make our publicity for work and quotations

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Reviewed by Katia on 25/10/2025

Alex visited me for a quote. One member of his team came on the same day and did the front garden quickly and efficiently.

CRYS ENGINEERING LTD

Single / Double Glazing

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

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Reviewed by Iftikhar on 10/11/2014

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

AVA Constructions & Decors LTD

Single / Double Glazing

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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.

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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 .

Megan Glazing Ltd

Single / Double Glazing

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Manufacturing & installation of upvc & aluminium

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.

KP GENERAL BUILDERS

Single / Double Glazing

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

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Reviewed by Brenton on 21/1/2026

DCK

Single / Double Glazing

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I've been in the building trade now for around 17 years, specialising in carpentery and kitchen fitting but carry out most aspects of building work too.

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Reviewed by Julian on 24/12/2023

Dan and his team were outstanding. Extremely personable, professional and straight forward. They arrived when they said they would arrive, did a great job creating the roof truss structure and were competitive on price. I would strongly recommend them for anyone looking for a carpenter.

Calladine Services

Single / Double Glazing

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Calladine Services is a family run business which has been established since 1989. We specialise in painting agricultural, industrial and domestic buildings with our access platforms and American airless spray units.

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Reviewed by Peter on 14/9/2025

Nexis One

Single / Double Glazing

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maintaince contractor muliskilled

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Reviewed by Dawn on 15/4/2020

Excellent service Will recommend to everyone

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

IMPRESS EUROPE LTD

Single / Double Glazing

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Impress Europe Ltd is a full service construction company offering comprehensive solutions for residential, commercial and industrial projects. From design and planning to building and finishing, we handle everything - including new builds, extensions, loft conversions, renovations, landscaping and custom projects. Our team of skilled professionals are committed to delivering quality, safety and excellence in every job. We pride ourselves on reliability, clear communication and building long lasting relationships with our clients. Choose Impress Europe for all your construction needs - one company, every solution.

Spelthorne Landscape & Garden Maintenance

Single / Double Glazing

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Small team of hardworking individuals dedicated to bringing the best to our clients.

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Reviewed by James on 13/4/2025

Amazing service - attentive and always communicative in terms of doing the right thing. Great job!

WINDOW NATION LTD

Single / Double Glazing

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We bring pride and passion to every project that we undertake, with a professional team of designers, project managers and tradespeople. Window Nation provides a professional service for high quality products and installations of windows, doors, roofline, cladding and conservatories. With over 45 years experience in the windows, doors and conservatory industry, family-run Window Nation are the South Easts leading glazing experts. We have built a long-standing reputation within the South East area for combining the finest double-glazed products with expert ASSURE registered workmanship to seamlessly take your project from concept to completion with the highest possible standards. You can be assured of the quality you'll receive on your domestic development project. Our window, door & conservatory installation teams work throughout Bedfordshire, Buckinghamshire, Cambridgeshire, Essex, Hertfordshire, Kent, Leicestershire, Lincolnshire, Norfolk, Northamptonshire, Rutland, Suffolk, and beyond, so if you're looking to get started on an exciting new project in one of these areas. The peoples choice for Windows, doors and more.....

WWC Glazing Group LTD

Single / Double Glazing

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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!