GUARDIAN WARM ROOFS & EXTENSION ROOMS

Transform Your Conservatory Into a Room You Can Enjoy All Year

Replace an outdated glass or polycarbonate conservatory roof with a fully insulated Guardian Warm Roof, or create a complete Guardian Extension Room designed and installed by our experienced team.

UK

Nationwide Coverage

Certass

Certified installers

Years Combined Experience

0 +

Products engineered for serious homes.

We supply and install only the products we’d put in our own homes; sourced from Korniche, Deceuninck, Origin, Cortizo, Roof Maker and Jack Aluminium.

Guardian Warm Roofs & Extensions Rooms

Turn an uncomfortable conservatory into a warm, quiet and energy-efficient living space with a fully insulated Guardian Warm Roof or complete extension room.

Aluminium

Premium aluminium bi-folds, sliding doors, French doors, windows and entrance doors from leading manufacturers.

uPVC

Secure, energy-efficient and low-maintenance uPVC windows and doors available in a wide range of colours and finishes.

Rooflights

Bring more natural light into your property with our own Avantgarde flat rooflights, Korniche lanterns and Roof Maker systems.

Commercial Projects

Professional glazing, windows, doors and roof systems for commercial developments, trade customers and property professionals.

Why Avantgarde

At Avantgarde Living, we help homeowners and commercial clients create brighter, warmer and more enjoyable spaces through carefully specified glazing and building solutions.

From Guardian Warm Roofs and extension rooms to aluminium doors, uPVC windows and bespoke rooflights, every project is measured, ordered and installed by our own experienced team. This gives you one reliable point of contact from the initial quotation through to the completed installation.

Trusted by trade and luxury homeowners alike
Fitters of certified Certass products
Direct relationships with premium suppliers
Full nationwide UK coverage (excl. Ireland)
Bespoke specifications for architects and developers

Trusted manufacturer partners

Six reasons clients keep coming back.

We’re not the cheapest and we’re proud of that. Every project we sign is built on specification, craft and accountability.

Accredited installers

Independently accredited install teams — every job signed off to building regulation standards.

Premium specification

Korniche, Origin, Deceuninck, Cortizo, Roof Maker — only the systems we'd fit in our own homes.

Own install teams

No subcontractor chains. The team that quotes you is the team that fits the job.

Nationwide coverage

Mainland UK from Scotland to Cornwall — one point of contact wherever you build.

Manufacturer-backed guarantees

Full product and workmanship warranties on every supply-and-install project.

Trade & architect friendly

CAD specs, lead-time planning and trade pricing for developers, architects and main contractors.

From first call to final fix.

01

Consult

Tell us about the project. We respond with specification and ideas.

02

Supply

We source directly from our premium UK manufacturer partners.

03

Install

Certass-certified fitters complete the job — anywhere in mainland UK.

Bring more light, comfort and craftsmanship into your space.

Whether you’re a homeowner, architect or developer we’d love to talk about what you’re building.

Our values

The standards we hold every project to.

Craft over compromise

Detail is non-negotiable — from sightline alignment to the final silicone bead.

On time, on spec

Honest lead times. Honest install windows. We protect your programme.

Built to last

Specifying products for thermal performance, longevity and lower lifetime cost.

Long relationships

Most of our work is repeat business from architects, builders and homeowners.

Answers before you ask.

Do you supply only, or also install?

Both. We’re a true supply-and-install business — most clients use us end to end, but we’ll happily supply trade and main contractors with product only.

Where in the UK do you cover?

We cover the whole of mainland UK from Scotland to Cornwall. We don’t currently work in Ireland.

How long does a typical project take?

Lead times depend on product and spec, but most residential projects are 4–8 weeks from order to install. We give honest dates upfront and protect your programme.

What manufacturers do you work with?

Our core partners include Korniche, Roof Maker, Deceuninck, Origin, Cortizo, Jack Aluminium and Residence 7. We specify based on what’s right for your project, never on a single brand.

Are your installers certified?

Yes — our installers are Certass certified, fully insured and audited. Every job is signed off to current building regulation standards.

Do you work with architects and developers?

Constantly. We provide CAD specs, planning support, trade pricing and dedicated project management for multi-plot developments.

Can’t see what you’re looking for? Call us on 03332 070423 or drop us a message.