Bespoke Timber Windows and Doors in Brighton & Hove

When investing in new timber windows and doors, you are looking for more than just aesthetics—you are investing in security, thermal efficiency, and long-term durability against our coastal South Coast climate. At The Timber Double Glazing Company Ltd, we reject the temporary fixes of mass-market joinery. Every architectural frame that leaves our East Sussex workshop is custom-engineered using the world’s finest materials and a rigorous, multi-stage manufacturing process designed to withstand the elements for generations.
Whether you are restoring a historic property in a Brighton conservation area or building a contemporary home, here is the advanced material science, certified consumer protection, and master craftsmanship behind our luxury wooden windows and doors in East Sussex.

Fully Accredited, Insurance-Backed Peace of Mind

Fully Covered

We believe our craftsmanship should be matched by absolute consumer security. Unlike unaccredited joiners, The Timber Double Glazing Company Ltd is fully certified for both the manufacturing and installation of all wooden windows and doors.

FENSA Registered: Ensuring every installation complies fully with current UK Building Regulations and energy-efficiency standards.

GGF Members (Glass and Glazing Federation): We adhere to the industry’s strictest technical and consumer code of practice.

QANW Insurance-Backed Guarantees: Every single project is protected by a Quality Assured National Warranties policy, ensuring your deposit and warranty are safe no matter what.

The Foundation: Why We Use A1 Grade Accoya®️ Timber

The Foundation

We construct our premium frames using A1 Grade Accoya, the absolute highest visual and structural classification of modified wood available.

Accoya isn’t just treated timber—it is high-performance wood engineered at a molecular level via a non-toxic acetylation process. By altering the wood’s natural chemistry, Accoya becomes virtually immune to the traditional weaknesses of timber.

An Unbeatable 50-Year Warranty: Accoya is so durable that it comes backed by an industry-leading 50-year above-ground warranty against rot, decay, and wood-boring insects.

Unrivalled Dimensional Stability: Standard timber shrinks and swells with changing seasons, causing paint to crack and frames to stick. Accoya reduces swelling and shrinking by 75% to 80%. Your doors and windows will open seamlessly all year round—with zero jamming in wet winters and no rattling in dry summers.

Naturally Insulating: Accoya’s unique cellular structure yields superior thermal insulation properties compared to hardwood and softwood, keeping your energy bills lower.

Perfect for Brighton & Hove's Heritage Architecture

Perfect for Brighton & Hove

Because Accoya does not warp, twist, or cup, it allows us to manufacture ultra-slim, historically accurate timber windows that satisfy strict local heritage guidelines while delivering modern double-glazing performance. We specialize in replicating the exact architectural details found across Sussex:

Regency Sash Windows: Replicating the iconic, grand 6-over-6 pane configurations found across Brighton’s famous seafront terraces and squares.

Victorian Sliding Sashes: Crafting the ornate run-through horns, deep bottom rails, and multi-pane styles characteristic of the area’s mid-to-late 19th-century properties.

Edwardian Windows: Reproducing the classic “top lights” and multi-pane upper sashes paired with clean, large single panes below to maximise light.

High-Strength Engineered Joinery

High-Strength

A window or door frame is only as strong as its corners. To ensure our joints never sag under the weight of modern, heavy double-glazing, our East Sussex joinery team combines advanced digital cutting with industrial-grade chemistry.

Custom Accoya Dominos: We cut our structural floating tenons out of Accoya itself. This guarantees that the internal joint shares the exact same ultra-low thermal movement as the outer frame, preventing joint separation.

Soudal Pro 45P D4 Polyurethane: We fuse these joints together using an ultra-fast, professional D4-rated waterproof adhesive. It expands into every microscopic cavity of the joint, creating a permanent, rock-solid, weatherproof weld.

The Gold-Standard Finish: Factory-Applied Teknos Paint Systems

The Gold-Standard

Traditional gloss paints trap moisture, leading to flaking, peeling, and rot within a few seasons—especially in exposed coastal environments. We exclusively use Teknos water-borne, microporous coatings—the global benchmark for factory-finished timber windows.

Advanced Multi-Coat Protection: Our spray line applies an anti-stain primer to lock in natural wood acids, followed by deep end-grain sealing.

Extended Paint Lifespan: Because Accoya wood underneath is completely stable and doesn’t move, the paint coating isn’t subjected to stress. This allows the Teknos system to create a flexible shield that lasts up to 12 years before needing a simple topcoat refresh.

Advanced Glazing & Moisture Protection

Improper glazing is the number one cause of double-glazing failure (blown, misty units). At The Timber Double Glazing Company Ltd, we utilize a highly precise, multi-stage factory glazing workflow to guarantee your glass stays crystal clear.

Component-First Coating: We prime and topcoat the internal glazing rebates before assembly. If moisture ever bypasses the outer seals, the hidden wood inside the frame is already fully sealed.

Drained & Ventilated Design: Glass units are seated on structural packers to create a continuous drainage path, ensuring water can never sit stagnant against the edge seals.

Hodgson Silfix®️ U9 Silicone Bedding: We seal our glass and timber glazing beads with premium, low-modulus, neutral-cure Silfix U9 silicone. Unlike cheap fillers or acrylic caulks, it won’t degrade under intense UV light or split when the glass flexes against high sea winds, keeping your Brighton home perfectly draught-free.

Looking for Premium Wooden Windows and Doors in Brighton & Hove? By marrying the natural beauty and 50-year durability of A1 Accoya with cutting-edge adhesive, glazing, and paint technologies, The Timber Double Glazing Company Ltd delivers architectural joinery that doesn't just look spectacular on day one—it is engineered to perform beautifully for generations. We proudly serve homeowners, heritage property developers, and architects across Brighton, Hove, Lewes, Eastbourne, and the wider East Sussex region.

Other services we can help you with

We deliver tailor-made solutions that respect your home's character

Paint Finishes

Our Timber Products

Ironmongery

Glass For Your Windows & Doors

Timber Sash Windows & Doors

Hear from our clients

Stories of transformation

Frequently
Asked Questions

Questions we often asked

How do I get a quote?

Simply get in touch via phone on 07575 380380 or email us at info@thetimberdoubleglazingco.co.uk. We’ll arrange a convenient time to visit your property, take measurements, discuss your requirements, and provide a no-obligation quote.

What areas do you cover?

We’re a West Sussex-based company serving homeowners across West Sussex, East Sussex, Surrey, and London. If you’re unsure whether we cover your area, just give us a call and we’ll be happy to let you know.

Are your windows suitable for listed or period properties?

Yes. We specialise in crafting timber windows and doors that respect the character of heritage homes, including Victorian, Georgian, and Edwardian properties. Our sash windows in particular are designed to replicate traditional profiles while delivering modern double-glazed performance.

What types of timber do you use?

We use high-quality, sustainably sourced timber selected for its durability, stability, and natural beauty. For details on the specific species and grades we work with, visit our Timber Products page or ask us directly.

How long does an installation typically take?

Timescales vary depending on the size and complexity of the project. A straightforward window replacement might take a day or two, while a larger project involving multiple windows or doors will take longer. We’ll give you a clear timeline when we quote.