Approved Installers

Replacement Conservatory Roof

Replacement Conservatory Roof

We're approved installers of LEKA, the UK's No.1 lightweight, tiled replacement conservatory roof system. Backed by a 40 year warranty and JHAI approved, the highly advanced LEKA system is the ideal solid roof solution.


Suitable for new and existing conservatories, the LEKA system has an overall U value of just 0.15 (the lower the U value the better) and typically weighs up to 40% less than competitor products.

  • Allard Double Glazing are fully trained and registered LEKA Installers.
  • LEKA is one of the most energy efficient roof systems on the market today with an overall U value of just 0.15
  • Lightweight, competitor products typically weigh up to 40% more than the LEKA system.
  • JHAI approved roofing system - fast and simple building regulation compliance.
  • Learn more about the LEKA System
  • Learn more about JHAI Approval
  • Who's working in your home? Our qualified installers are DBS (criminal record checked) and are employed by us (not sub-contractors)

FAQ: Will I Need Building Regulations?

When converting a glass/polycarbonate conservatory roof to a solid system you will require building control sign off. The LEKA system is JHAI approved. JHAI approval provides a fast and simple process that provides peace of mind that every installation is provided with a compliant building control certificate.


In your search for a new roof you will probably comes across systems that are LABC (Local Authority and Building Control) approved. Be aware that if you are changing from a poly/glass roof to an LABC tiled system, you WILL STILL REQUIRE BUILDING CONTROL APPROVAL & CERTIFICATION.

LEKA Approved Installers
Tiled Conservatory Roof

Tiled Conservatory Roof Installation Breakdown

1. Firstly, GRP rafters are fitted. GRP is not prone to woodworm or moisture absorbtion (like traditional timber), condensation or thermal bridging like aluminium alternatives.


2. LEKA sheets are fitted internally. The sheets are 100% waterproof, just third of the weight of plasterboard and have unique thermal qualities.


3. Insulated Celotex sheets are fitted


4. Lightweight, load bearing outer sheets are fitted. These outer sheets are completely waterproof and thermally efficient.


5. Finally, a high quality Tapco Slate or Metrotile roof is fitted.

Tapco Slates
Metro Tiles
  • Guild Of Master Craftsmen
  • Federation Of Small Businesses
  • Halo
  • Trustatrader
  • Certass
  • QANW