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

Gru Co LTD

Single / Double Glazing

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Who We Are Glass R Us, the trading name of Gru Co Ltd, is a family-run business with over 60 years of combined industry experience. We are proud to offer a comprehensive range of glazing, window, and door solutions for both residential and commercial clients across London and beyond. Our reputation is built on delivering high-quality craftsmanship, exceptional service, and a commitment to customer satisfaction. Our Mission At Glass R Us, our mission is simple: to transform spaces with precision-crafted glass solutions that combine functionality with aesthetic appeal. We are dedicated to enhancing the homes and businesses of our clients through innovative designs, sustainable practices, and reliable service. Our goal is to exceed expectations on every project, no matter the size or complexity. What We Do We specialise in supplying and installing a wide variety of products, including: • Glazing • Windows and doors (UPVC, aluminium, timber) • Mirrors and splashbacks • Shower screens and glass doors • Partitions and balustrades Our expertise extends from small residential upgrades to large-scale commercial installations. Every project is customised to meet the unique needs of our clients, blending practicality with style. Our team’s professionalism is reflected in our industry certifications with Assure, PQS, Constructionline, and Acclaim, demonstrating our commitment to adhering to the highest standards. Our Service Area Based in London, we primarily serve clients within the M25. However, we are flexible and willing to travel beyond this area depending on the specific requirements of your project. Whether you’re in the heart of the city or in the surrounding regions, we bring our expertise directly to your doorstep. Get in Touch We understand that your time is valuable, which is why we make it easy to get in touch with us. Whether you prefer to call or email, our team is ready to respond quickly and efficiently. For urgent needs, we also offer out-of-hours emergency services, ensuring that help is always just a phone call away. Our Promise At Glass R Us, we believe that the customer experience is just as important as the work we do. From the initial consultation to the final installation, we are with you every step of the way.

Latest homeowner review

Reviewed by jason on 10/2/2014

Great service, reliable, fast and cheap also. I would highly recommend them

Chereji Construction LTD

Single / Double Glazing

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Chereji Construction Ltd is a trusted, we boast over 8 years of industry experience.Our team specialises in a range of service, Painting&Decoration , Interior/Exterior,Bathroom Fittings, Kitchen Fittings, Tilling,Full refurbishment,Carpentry plus more! We have experience in all industry sectors including top-sec residential development.We know that our reputation is built by workforces ,so we pay great attention to their welfare,especially regarding health and safety .

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.

SLS HOME IMPROVEMENTS

Single / Double Glazing

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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

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Reviewed by Laura on 10/5/2026

GREATER LONDON GLAZING LTD

Single / Double Glazing

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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

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Reviewed by Anthony on 18/4/2026

Your Property Developers

Single / Double Glazing

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Carpentry (Certified Fire Door Installer/competent person) Electrical and general builder

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Reviewed by Abbie on 8/5/2026

London Sash Services

Single / Double Glazing

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We are a new business but with over 6yrs experience with working with sash windows. We offer a competitive fixed price service regardless of the size of the window. We also undertake handyman jobs including shelving, blinds and flat pack furniture

Latest homeowner review

Reviewed by Jane on 4/10/2019

We were very impressed with Dan’s attention to detail, standard of workmanship and care taken. We were happy with the original installation but it is a tribute to Dan that he identified an issue and came back to do more work until he was satisfied it was just right. Dan kept us informed of progress and was very pleasant to deal with. When we had an issue with planning permission Dan provided detailed drawings of the sash window specifications. No hesitation in recommending. Windows look lovely.

T&M Property Care

Single / Double Glazing

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At T&M Property Care, we are dedicated to delivering high-quality property maintenance, refurbishment and construction services for homeowners, landlords, developers and commercial clients. With years of industry experience, our skilled team provides reliable workmanship across a comprehensive range of building and property improvement services. From minor repairs to complete refurbishments, we manage every project with professionalism, attention to detail and a commitment to delivering exceptional results. We understand that every project is unique. That’s why we work closely with our clients to understand their requirements, provide practical solutions and ensure every project is completed safely, efficiently and to the highest standards. Our focus is on quality craftsmanship, clear communication and dependable service from the initial quotation through to final handover. Whether you’re renovating a single room, fitting a new kitchen, transforming a bathroom, carrying out structural improvements or undertaking a full property refurbishment, T&M Property Care has the expertise to deliver a professional finish you can rely on. Our reputation is built on trust, reliability and customer satisfaction. We take pride in delivering workmanship that stands the test of time while maintaining a clean, organised and safe working environment throughout every project. Our Services Building & Refurbishment * Full Property Refurbishments * Home Improvements * Internal & External Renovations * Commercial Refurbishments * General Building Works Carpentry & Drylining * Carpentry & Joinery * Timber Stud Partition Walls * Drylining & Plasterboarding * Ceiling Installation * Door Installation * Skirting Boards & Architraves Plastering & Rendering * Skimming & Plastering * Internal Rendering * External Rendering * Patch Repairs * Decorative Finishes Kitchens & Bathrooms * Complete Kitchen Installations * Bathroom Installations * Kitchen Refurbishments * Bathroom Renovations * Plumbing Alterations Plumbing & Electrical * General Plumbing * Electrical Installations * Electrical Alterations * Lighting Installation * Power & Socket Installations Flooring & Finishes * Laminate Flooring * Engineered Wood Flooring * Vinyl Flooring * LVT Flooring * Floor Tiling * Wall Tiling External Works * Landscaping * Fencing * Patios & Paving * Garden Improvements * External Property Maintenance Security & Smart Home * CCTV Installation * Security Camera Systems * Smart Home

Tennants Building Services

Single / Double Glazing

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

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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.

DCL Building Contracts

Single / Double Glazing

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Hi all , A bit about myself my names Scott I’m skilled in many departments in the construction industry , Speciality’s Qualified painter & decorator , I also have qualifications in damp works rising penetrative & mould issues , I also cover roofing issues , erect fences and cover a lot of carpentry work , I’m professional great communication as that’s paramount im punctual and never leave a customer unsatisfied , I would love to show case my skills at your home , 35 years experience in construction . Regards Scott

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Reviewed by Gaynor on 17/3/2026

BUILDWAY CONSTRUCTION LTD

Single / Double Glazing

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We are a small development company moving into property maintenance to keep our trusted tradesman busy. We can provide trusted, qualified and experienced tradesman to carry out the work required and are contactable 24 hours a day.

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Reviewed by Rachel on 30/11/2025

LM Double Glazing Repairs

Single / Double Glazing

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I have 16 years of experience working in double glazing industry. 6 years in manufacturing and last 10 years as service engineer. Cscs card and nvq level 2. Public liability insurance. Valid DBS check.

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Reviewed by Jackie on 23/1/2026

Very busy tradesman, did an excellent job of renewing one lock and repairing another for a very reasonable price., checking I was happy with the results as he went along. Highly recommended.

CJP Builders

Single / Double Glazing

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CJP Builders is a general builders company that specialises in high-quality brickwork, whilst that is our forte we also offer a full range of building services catered to what you need from us. With strong attention to detail, alongside the experience and expertise were always looking to expand and grow taking on any work or projects of all sizes We aim to deliver reliable, efficient and everlasting results, whether it’s new builds, extensions, renovations or repairs, we here at CJP are committed to quality workmanship and customer satisfaction every step of the way

Lorenzo Building Services

Single / Double Glazing

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We are a hard working team with great experiance

S 2 PROPERTY SOLUTIONS

Single / Double Glazing

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With 15 years of experience we are a small building firm which values customer satisfaction above all else. We specialise in bifold installations, double glazing installations, repairs and finish carpentry. Our experienced team is able to fulfil all of your domestic requirements, from painting your home to complete extensions and renovations.

A CONSTRUCTION PROFESSIONAL BUILDS LIMITED

Single / Double Glazing

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

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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.

Prestiges Construction Ltd

Single / Double Glazing

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THE ONLY CHOICE FOR YOUR HOUSE!!! We work with homeowners and their partners to solve the unique challenges of managing house improvments.

Latest homeowner review

Reviewed by Robert on 5/5/2026

Turned up on time and got going immediately. Very polite and kept me informed throughout the build. Would 100% recommend this very hard working team. Huge thanks.