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

C&B Windows LTD

Single / Double Glazing

(3) Read reviews

View ProfileRequest a quote07544712453

Hi, here at C&B Windows Ltd. We strive to give our customers quality workmenship at the post competitive prices on the market. We’ve nearly 20 years experience in the double glazing industry. Ranging from service engineer,surveyor to installer . We are FENSA registered company and off an insurance backed guarantee on all off our installation works . We can undertake the following works plus more. And we hope to hear from you soon. Replacement Windows & Doors Bi folding doors Lanterns Internal “crittal” doors Replacement sealed units Replacement Locks Replacement Hinges Replacement Handles Installation off trickle vents . Many Thanks C&B Windows Ltd

Latest homeowner review

Reviewed by Sandra on 12/11/2025

Costa Boyer Ltd.

Single / Double Glazing

(22) Read reviews

View ProfileRequest a quote

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.

JDL Builders

Single / Double Glazing

(58) Read reviews

View ProfileRequest a quote

JDL BUILDERS is a small local business that offers the highest standards of work at a fraction of the cost of all these big company's. we are proud that are customers can read this profile and see what we as a company stand for. CORE VALUES 1) RELIABILITY. you can always rely on JDL to meet target dates or do everything in are power to make sure we take any of ur stress away. 2)CONSISTENCY. Is key having a high standard of work.. an old man once told me ur only as good as ur last job. Employ the best and don't have the job done twice. 3) PASSION. JDL has a real passion to be the best in what we deliver. And hopefully all are reviews reflect this. and most of all HONESTY. JDL will always be totally honest with you..

Latest homeowner review

Reviewed by Ann on 3/8/2026

AYG Construction Ltd

Single / Double Glazing

(28) Read reviews

View ProfileRequest a quote

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!

Latest homeowner review

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.

F&M CONSTRUCTION

Single / Double Glazing

(3) Read reviews

View ProfileRequest a quote

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

Lorenzo Building Services

Single / Double Glazing

View ProfileRequest a quote07936445554

We are a hard working team with great experiance

Tennants Building Services

Single / Double Glazing

(36) Read reviews

View ProfileRequest a quote07859797677

We are a Father and Son team with 25+ years of experience in the construction industry, specializing in extensions and outbuildings.

Latest homeowner review

Reviewed by Leanne on 3/6/2025

Placed advert Thursday. Contacted same day by Mike with a view to coming out and quoting next day. Came on time priced the job on Friday and arranged to start work on the Tuesday. Mike worked with his son Silas. What a really nice pair. Genuine, polite and got on with the job even though I asked for a few tweaks along the way. Both very old school and worked at their own pace - happy with work carried out and will use them again. Reasonable price too.

Apex-Assure Ltd

Single / Double Glazing

(15) Read reviews

View ProfileRequest a quote

Qualified, local, independent window and door specialist, I offer all aspects of locksmithing, window/door repairs and installations, and services are available 24 hours a day.

Latest homeowner review

Reviewed by Hassan on 19/9/2025

BATEKRIS LTD

Single / Double Glazing

View ProfileRequest a quote

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

BRAHAM GLAZING LTD

Single / Double Glazing

(3) Read reviews

View ProfileRequest a quote

We are "Braham glazing Limited" a reliable family company in London. We provide our customers with high class and excellent quality designs and build services whether it's windows, doors, conservatory or a porch throughout the UK. We respect the individual expectations of each customer and provide tailor-made solutions with bespoke products designed specifically for each customer. We work with passion and dedication towards every job big or small.

Latest homeowner review

Reviewed by Avril on 19/8/2022

The 2 men worked hard and I'm very pleased with my windows and patio doors. They also cleared everything up afterwards.

GEORGE CONSTRUCTION

Single / Double Glazing

(61) Read reviews

View ProfileRequest a quote

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.

APEX WINDOWS LIMITED

Single / Double Glazing

(8) Read reviews

View ProfileRequest a quote

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!

Latest homeowner review

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

EPRLocksmith

Single / Double Glazing

(214) Read reviews

View ProfileRequest a quote07454482395

I'm a mobile Locksmith based in Ashford, Middlesex. I work in the following postcodes TW and KT but that doesn't mean that if you're in London or surrounding area you are too far. I also do some handyman jobs in between or if I'm in a certain area or the customer requests it. I take pride in the work that I do, so a job will never be done just to be done, it's either working as it should or it doesn't. Best regards

Latest homeowner review

Reviewed by Taf on 18/3/2026

The locksmith that attended was honest and fair. He arrived within 35 minutes from confirming their service. The whole process was fast and efficient. Any other issues arise in the future; EPR Locksmith would be my first point of call.

fair trade builders

Single / Double Glazing

(42) Read reviews

View ProfileRequest a quote

Fairtrade builders

Latest homeowner review

Reviewed by Steve on 29/9/2021

Had a quote for roof repair which included for 1 missing tile, re fitting existing tiles, repairing flashing and gutter cleaning did not accept quote. On advice from another roofer just had the one missing tile replaced since there was no evidence of any leaks inside the loft or 2nd floor ceilings.

A-TECH BUILDING SERVICES LTD

Single / Double Glazing

(43) Read reviews

View ProfileRequest a quote

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.

Latest homeowner review

Reviewed by Shahim on 21/1/2026

A CONSTRUCTION PROFESSIONAL BUILDS LIMITED

Single / Double Glazing

(55) Read reviews

View ProfileRequest a quote07784985626

Full property renovations, extensions, loft conversions, outbuildings & more.

Latest homeowner review

Reviewed by Dominic on 5/7/2024

Andre and team did a great job with the shed /summerhouse construction, and were very accommodating with the request to build it at short notice ( (within 5 days) and alter the layout of the building to meet our requirements. Also were very friendly and professional. Reasonably priced too. Would recommend.

Constructpedia LTD

Single / Double Glazing

View ProfileRequest a quote

It’s hard to choose the proper construction company when you have so many options, so which one is the one you are looking for? In an over-saturated market we are trying to make the difference by being professional, involved and confident.

ALEX AND SONS LANDSCAPING, BUILDING AND GARDENING SERVICES

Single / Double Glazing

(108) Read reviews

View ProfileRequest a quote07388551754

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

Latest homeowner review

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.