Cavity wall removal and refillAndover (SP11)

Rented property, Andover: working around tenants

A private landlord's rented property where our borescope survey found growth and vegetation inside the cavity on the side elevation. The house also needed a damp-proof course and had broken and spalled bricks on the gable. Nobody would have known about the vegetation without the survey.

  • 112m² of cavity wall treated
  • Vegetation removed from cavity
  • Dry Rod DPC injected
  • Gable bricks replaced
  • ThermaBead bonded bead refill
  • Arranged through letting agent — tenants kept informed
Rented property, Andover: working around tenants

What we did

We removed and refilled 112m² of cavity wall insulation, cleaned the vegetation out of the cavity, fitted a core vent for ventilation, injected a Dry Rod damp-proof course, replaced the damaged gable bricks, and refilled with ThermaBead bonded beads. We arranged access through the letting agent, kept the tenants informed about how long we would be there, and sent the photos and guarantee paperwork at the end.

Why it matters

Landlords need a contractor who will deal with the agent, respect the tenants and hand over clean paperwork. It also shows why a borescope survey matters: nobody would have known about the growth in the cavity without one.

Managing a rented property?

We deal with letting agents, respect tenants and hand over full guarantee paperwork. Borescope survey included on every job.

Extract Energy

Insulation, solar, battery storage and EV charging for homes across Hampshire, Wiltshire, the Isle of Wight, West Sussex and Surrey. Based in Gosport since 2013.

0800 7022181 sales@extractenergy.co.ukUnit 9 Clarence Wharf, Mumby Road, Gosport PO12 1AJMon–Fri 9am–5pm

Company

Accreditations

SchemeReference
TrustMark1948305
MCS (IAA)IAA10310
IAA installerFED10392
Kiwa579075
NAPITRegistered
ConstructionlineGold member
EA waste carrierCBDU532168

Extract Energy is a trading name of Extract Insulation Ltd, registered in England & Wales no. 09462745. Registered office: Unit 9 Clarence Wharf, Mumby Road, Gosport PO12 1AJ. VAT registration no. 213906329. Environment Agency registered waste carrier CBDU532168. TrustMark licence 1948305. MCS certificate IAA10310. NAPIT registered. © Extract Insulation Ltd 2026.

All installations are carried out by qualified, accredited engineers. Solar PV, battery storage and EV charger installations are subject to survey and technical assessment. Insulation measures are subject to property suitability checks. Prices and eligibility criteria are subject to change. VAT at 0% applies to the installation of qualifying energy-saving materials (insulation, solar panels and battery storage) until 31 March 2027, after which the rate reverts to 5%. Removal works, loft boarding and EV charger installation are subject to VAT at 20%. Nothing on this website constitutes financial advice. The Warm Homes Plan (grant and loan routes) is a government scheme; eligibility is determined by the relevant scheme administrator and is not guaranteed. Registering your interest does not constitute an application or a commitment by Extract Energy or the scheme administrator.

Extract Energy is not a financial services firm and does not provide regulated financial advice. Warm Homes Loan products are government-backed; independent financial advice is recommended before entering any credit agreement.