Understand and improve your home's energy performance.
Energy assessments for existing homes in Jersey.
An energy assessment for an existing home identifies the current thermal performance and highlights where improvements can be made. We produce energy assessments for homeowners planning significant alterations or improvements.
- Free Initial Consultation
- All In-House — No Subcontractors
- Bylaw Plus — Builder-Ready Drawings
- Jersey Only Specialists
- Structural Engineering Included
What's Included
- Assessment of current thermal envelope
- U-value calculations for existing walls, floors, and roof
- Recommendations for improvement
- Specification for improvement works in the drawings
How It Works
Survey
We assess the existing construction to determine current U-values and thermal performance.
Assessment report
We produce a report identifying current performance and recommended improvements.
Specification
Where improvement works are being carried out, we specify the required insulation in the Bylaw Plus drawings.
Planning Note
Energy assessments for existing homes are not a planning requirement but are required for bye-law applications for significant alterations.
Frequently Asked Questions
Planning Reports we have taken through planning
Coastal National Park Renovation
“Building near the coast brings endless scrutiny. The site plans and visual impact statements they drafted were so thorough that the planning committee granted permission without asking for a single tweak.”
External Steel Fire Escape
“We needed a secondary escape route for our first floor office. The drawings balanced safety rules with visual appeal, passing planning on the first attempt.”
Air Source Heat Pump Housing
“Placing an external heat pump unit near our boundary needed explicit planning permission. The noise assessment and drawings provided got us approved without complaints from neighbours.”
Ready to start your energy assessment — existing home project?
Free initial consultation. We advise on planning, costs, and timescales. Jersey only.