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

J MCMAHON LIMITED

Single / Double Glazing

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Bedfordshire based carpentry and property improvements company . offering carpentry internal and external , as well as having a strong diverse team of different trades operating within the company , all aspects of building work taken on board and a professional job from start to finish .

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Reviewed by Christopher on 27/3/2026

Very unprofessional Postponed the agreed date and then ignored all messages Avoid!

JS7 Service LTD

Single / Double Glazing

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I am an experienced builder providing a wide range of interior and exterior construction services. I specialise in all aspects of building work, including bricklaying, plastering, painting and decorating, paving, flooring, plumbing, and fencing. I also carry out complete projects such as driveways, kitchens, bathrooms, garage builds, extensions, and loft conversions. From small repairs to full renovations, I handle every job with care and attention to detail. I take pride in delivering high-quality, strong, and reliable work, ensuring every project is completed to a professional standard. I focus on good workmanship, safety, and customer satisfaction at all times. I am hardworking, trustworthy, and able to work independently or as part of a team. No job is too big or small, and I always aim to finish on time and within budget.

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Reviewed by Noel on 8/5/2026

Very happy with the garden wall repair. Neat work. Good workers.

FM Property Services

Single / Double Glazing

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At our company, FM Property Services , construction is more than just building — it’s about creating spaces that our customers can trust, enjoy, and feel proud of. With over 15 years of experience, we are committed to delivering high-quality work while making sure every client feels valued and satisfied. We understand that every project is important, whether it’s a small job or a large development. That’s why we work closely with our customers, listening to their needs and turning their ideas into reality. Our team focuses on clear communication, reliability, and attention to detail from start to finish. Customer satisfaction is at the heart of everything we do. We aim not only to meet expectations but to exceed them by delivering projects on time, within budget, and to the highest standards. For us, a happy customer is the true measure of success — and we are proud to build lasting relationships along with strong, dependable structures.

JFC Roofing and Building

Single / Double Glazing

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We are a family run company that cover the London and Sussex and Portsmouth Area we are experts at all aspects of property maintenance we pride ourself at delivering a good service that fits into your budget and work with you at all stages to get the finish you want

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Reviewed by Rosario on 18/11/2023

They did not solve the problem until now still leaking inside my extension already fit new roof and agreed the amount he asked for. Left the gutter in the main roof without the down pipe. Messaged sent but not hear from JFC .

B FIX

Single / Double Glazing

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Founded in 2025, Bfix has established itself as a leader in luxury construction and interior design. Like a hive of diligent bees, our team works tirelessly to turn dreams into reality, creating spaces that are not only beautiful but also built to last. We pride ourselves on our ability to deliver superior craftsmanship and exceptional service. What We Offer Free On-Site Inspection – We carry out a full technical assessment to identify damage to floors, ceilings, walls, and fixtures. Trace & Access Support – We assist in locating hidden leaks and identifying areas affected by moisture. Repair Planning – We help outline the works required for restoration, based on what insurers typically expect to see. Supportive Documentation – We provide clear, itemised findings that you can use if you choose to start an insurance claim. Referral to Insurance Claim Experts – If required, we can introduce you to regulated professionals who manage claims directly on your behalf. Why Choose Bfix? Unmatched Expertise: Over many years of experience in luxury construction. Tailored Solutions: Custom designs that cater to your specific needs. Superior Quality: Premium materials and meticulous craftsmanship. Customer Satisfaction: We prioritize your vision and ensure a seamless construction process.

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Reviewed by Jay on 19/2/2026

Lorenzo Building Services

Single / Double Glazing

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We are a hard working team with great experiance

K.S Property Services

Single / Double Glazing

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My company under takes most home improvement work ie:fencing flooring painting decking paving etc

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Reviewed by Andy on 21/8/2015

Ken came round, agreed a price and date to do the work then just didn't turn up. Not the best really.

Cornel Ilea

Single / Double Glazing

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Hi, my name is Cornel , I work in construction ,I like what i do, i do , painting, laminate flooring, tiles floor and wall.

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Reviewed by Angela on 6/2/2026

The Job was completed to a High standard. Thank you

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.

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.

Cn Construction&Gardening Ltd

Single / Double Glazing

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C & N Constructions is a well-established company offering construction and landscaping services for both residential and commercial clients. Our faith: We believe in open and honest communication and shared goals which will generate greater continuity in workload and thereby provide sustained improvements in quality, efficiency & delivery. Our mission: To safely deliver any project, any time, in any environment for the benefit of our customers, shareholders, employees and the communities we serve. Company vision: C&N Constructions is committed to building long-term relationships based on integrity, performance, value, and client satisfaction. We will continue to meet the changing needs of our clients with our quality services delivered by the most qualified people. Get in touch and we can start asap! We offer free and no obligation project estimate.

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Reviewed by John on 29/6/2025

The job was to cut back a severely overgrown patch of garden. Chris & his team, Adrian & Cosmin, gave me a competitive quote, after coming to visit the site to assess what needed to be done. They started next day and completed the job quickly and to my complete satisfaction. The site was cleaned up & all waste taken away. I will definitely use them again and strongly recommend them.

RMR BUILDING & RENOVATION LTD

Single / Double Glazing

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Our building services company RMR Building & Renovation Ltd has over 15 years’ experience in the industry. We have been helping customers in Essex and the surrounding 20-mile radius by providing professional, trustworthy building services. We know it can be hard to find a builder that you can rely on RMR Building & Renovation Ltd has a wealth of experience and is known as one of the best builders in Essex. We pride ourselves on providing a professional, caring and high-quality service and always meet our customers’ needs. RMR Building & Renovation Ltd delivers on timekeeping, quality of work and value. We offer a full range of building services, from major rebuilds to smaller jobs such as masonry repairs, including: New Builds Alterations, Extensions & Conversions Brickwork Concrete Plastering & Screeding Tiling Painting & Decorating Kitchens & Bathrooms Roofing Services Re-pointing Septic Tanks Excavation Services Soakaways Foundations External Works Drainage If you are trying to find a builder near you, why not give us a call? Our friendly, professional team will be happy to talk through your needs and give you a free, no-obligation quote.

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Reviewed by Geethumol on 31/7/2024

Professional, quality work,worth money

Bullari LTD

Single / Double Glazing

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We have been working on building projects for last 8 years Wood floors Bathrooms Painting & decoration Garden tiles

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Reviewed by F on 2/4/2026

Not recommended

NGV LTD

Single / Double Glazing

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Hi, we at NGV are a Bedford based company, we are all multi tradesmen and also have carpenters on our team.. we pride ourselves in the work we do and will always go the extra mile for our customers.. so why not give us a try and we guarantee you won’t be disappointed.

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

Costa Boyer Ltd.

Single / Double Glazing

(22) Read reviews

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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

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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.

Leo Property Development

Single / Double Glazing

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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'

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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.

London Welding & Metal Gates

Single / Double Glazing

(20) Read reviews

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

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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!