For free advice or a quotation call 023 9200 2291
Pallard Roofing

New Flat Roof Installation Services

Building Regulations Compliant Roofs for Extensions, Garages & New Builds Across Portsmouth & Local Towns.

Built to Last: Modern Flat Roof Systems

Whether you are building a new kitchen extension, a garden room, or a garage, the roof is the most critical component. A poorly installed flat roof can lead to condensation, heat loss, and leaks within months.

At Pallard Roofing, we combine traditional craftsmanship with modern materials. We specialise in Warm Deck construction, ensuring your new room stays warm in winter and cool in summer.

Our Installation Process

1

Consultation

We advise on the best material (EPDM, Felt, or Liquid) for your specific budget and aesthetics.

2

Structure

We install high-quality Structural Ply Decking (OSB3) to ensure a solid foundation.

3

Insulation

We install high-performance PIR insulation boards to meet Part L Building Regulations.

4

Waterproofing

We apply your chosen system with precision detailing around skylights and outlets.

5

Finish

We install new fascias, soffits, and guttering for a complete, clean look.

Which System is Right for You?

EPDM Rubber

Best for flexibility and long lifespan on larger extensions.

High-Performance Felt

Best for budget-conscious projects without compromising toughness.

Liquid Waterproofing

Best for overlays and complex roof shapes with many details.

Frequently Asked Questions

Common questions about our services and process.

Usually, no. Replacing or installing a flat roof on an extension typically falls under 'Permitted Development,' provided it is not higher than the existing roof. However, you must comply with Building Regulations regarding insulation.
A Warm Deck roof is where the insulation is placed on top of the roof deck but under the waterproof layer. This keeps the entire roof structure warm, preventing condensation and mould growth inside your home.
A standard single garage or small extension roof can often be completed in 1-2 days, depending on the weather and the complexity of the system.
We offer guarantees ranging from 15 to 25 years depending on the system used. This covers our labour. We can also provide Insurance Backed Guarantees (IBGs) for total peace of mind.
Yes. We are experienced in fitting Velux skylights and modern roof lanterns into new flat roofs. This is a popular way to flood kitchen extensions with natural light.
All our roofs are built to be walked on for maintenance. If you plan to use the roof as a balcony or terrace, let us know, and we will reinforce the structure and use a specialist non-slip finish.
For visible extensions, we often recommend EPDM Rubber. It looks smart, has a longer lifespan than felt, and is often installed in a single sheet with no seams to leak.

Ready to discuss your project?

Whether it's a simple repair or a large-scale installation, our family team is ready to help. Free estimates, honest advice, and no pressure.

Get a Free Quote Call 023 9200 2291