Energy Performance Upgrades

The most common factors that impact negatively on the thermal performance of a house and feature highly in low EPC ratings are low levels of loft insulation, solid floor insulation, wall insulation, older glazing, external doors and draught stripping. Low energy light bulbs also make a significant impact.

Loft insulation

A quarter of heat is lost through the roof in an uninsulated home. Insulating your loft, attic or flat roof is a simple and effective way to reduce heat loss and reduce your heating bills.
Detached house £225 £395
Semi detached house £135 £300
Mid terrace house £120 £285
Detached bungalow £195 £375
*Installation cost from this price.

Draught proofing doors & windows

Uncontrolled leakage of air through gaps in dwellings, in general results in unnecessary heat loss and discomfort to the occupants from draughts. One of these routes is through gaps around windows and doors, and draught proofing can greatly reduce this leakage.

Draught-proofing around windows and doors could save you around £20 per year. Draught-free homes are comfortable at lower temperatures – so you may be able to turn down your thermostat saving even more on your energy bills.

Secondary Glazing Installation

Secondary Glazing involves adding another slim-line window in addition to your existing windows. It is a cost effective and efficient method of insulating & sound proofing your windows. By fitting our Secondary Glazing you could save around 10% on your heating bills.

Secondary glazing is perfect for use in Listed Buildings and conservation areas. It can be made to be very slim and discreet. Considered a reversible change, secondary glazing is recommended by English Heritage.

High Performance external doors

Around 18% of the heat lost from your house is likely to have come from your doors and windows, so significant energy savings can be made by replacing old doors with new ones.

By fitting a high performance external door that is insulated and draught-proofed you can prevent heat from escaping and also reduce outside noise.

A Solid Composite Door in a well fitting uPVC Frame can save you up to £35 per year on your fuel bills.

External Wall Insulation

Here at EPEC Ltd we are experts in finding solutions to improving the insulation of external walls. Whether these prove to be hard to deal with solid brick or timber framed or relatively simple cavity walls we have a solution for you. Contact us for a quotation. 

Solid Floor Insulation

Solid floor insulation is a hard to treat area in improving the thermal performance of a house. Here at EPEC Ltd we have some cost effective and minimally disruptive ways of reducing heat loss through solid floors. Contact us for more information. 

Timber Floor Insulation

Upgrading timber floor insulation involves a bit of disruption as the floor covering needs to be stripped and refitted, skirting and architrave potentially removed and refitted and floorboards also removed and refitted. Insulation can then be installed between the joists and the floor refitted. We offer a complete service for facilitating this upgrade at EPEC Ltd. Contact us for a quotation. 

Double Glazing Installation

Replacing low performance single glazed windows with high performance double glazing not only reduces your heating bills but also reduces noise pollution. We are expert installers of double glazing here at EPEC Ltd. Contact us for a quotation. 

Triple Glazing Installation

Triple glazing in not very common in the UK but we do offer a service for its installation as clients have requested this in the past. This is particularly important for homeowners whose properties are built next to busy roads or in areas near airports. Contact us for a quotation. 

Low Energy Lighting Solutions

Replacing your existing light bulbs with low energy alternatives is a cost effective way of reducing your electricity bills. We offer a service at EPEC Ltd to carry out a lighting survey of your property, make recommendations for improvements and carry out the installation. Contact us for further information. 


07867 787672



5 Harmans Yard Great Dunmow Essex CM6 1AS