Roof Insulation Waterlooville
Roof Insulation in Waterlooville
At Loft Insulation Specialists, we help Waterlooville homeowners cut heating bills and stay warmer with professional roof insulation, fitted at rafter level to meet Part L building regulations. With over 40 years of experience across Hampshire, we know the town’s roofs — the pitched lofts and bungalows of the 1950s and 1960s estates around Cowplain, Stakes and Purbrook, the brick terraces and flat-roofed homes of the 1970s Crookhorn and Wecock Farm estates, and the newer houses at Berewood.
Heat rises, and up to 35% of your home’s warmth can be lost through the roof. We insulate between and over the rafters with 300mm Knauf Earthwool or slimline Superfoil to reach a 0.16 W/m²K U-value, keeping habitable lofts and room-in-roof spaces comfortable year-round and trimming around £200–£400 a year off bills.
We handle the full building control process for you, so there is nothing to arrange yourself. Every job starts with a free, no-obligation survey and a fixed-price quote — no high-pressure sales, no jargon, just straightforward advice.

How Waterlooville homeowners benefit from Roof Insulation
At Loft Insulation Specialists, we fit roof insulation, one of the most effective upgrades available, on a Waterlooville home. Heat rises, and without proper insulation at roof level much of the energy you pay for escapes straight through the structure. The town’s housing is largely post-war — the 1950s and 1960s suburban estates around Cowplain, Stakes and Purbrook, the brick terraces and bungalows of the Crookhorn and Wecock Farm overspill estates, and newer homes at Berewood — so roof types range from conventional pitched lofts and large single-storey bungalow roofs to flat-roofed properties with no loft void at all. We insulate between and over the rafters with Knauf Earthwool mineral wool at 300mm or slimline Superfoil multifoil to suit the build, targeting a 0.16 W/m²K U-value that meets Part L of the Building Regulations. Cold-roof constructions keep a 25mm eaves ventilation gap to prevent condensation, included as standard. Done well, a warm, dry roofline holds heat in the rooms below and takes the strain off your boiler. We will recommend the right material and depth after a proper look at your roof.
Why Waterlooville Homes Need Roof Insulation
Heat rises, and up to 35% of a home’s warmth can be lost through an under-insulated roof. Waterlooville grew quickly in the post-war decades — roughly 9,000 private houses went up across the district between 1958 and 1973, alongside the bungalows and brick terraces of that era and, more recently, the new homes at Newlands. Roofline insulation on the older stock rarely meets today’s figures, and in this damp Solent-hinterland climate a roof brought up to standard trims around £200 to £400 a year off heating bills.
Knauf Earthwool Mineral Wool Insulation
Knauf Earthwool is a mineral wool we install between and over the rafters to a depth of 300mm — comfortably past the 270mm government minimum — to reach a 0.16 W/m²K U-value. It is non-combustible and holds its thermal and acoustic performance for decades. For the conventional pitched roofs that dominate the town, from the single-storey bungalows to the two-storey terraces and semis, Earthwool is usually the most cost-effective option, priced between £900 and £1,200.
Superfoil Reflective Multifoil Insulation
Where rafter depth is shallow, or you want to keep the loft free for storage or a future room-in-roof, Superfoil multifoil reaches comparable performance in a far slimmer build-up. Fitted between the rafters, it works as a radiant barrier as well as an insulant, which suits habitable loft rooms and the tight trussed-rafter roofs on the area’s newer developments. Superfoil is typically priced between £1,200 and £1,800 installed.
Building Regulations and Certification
Roof insulation must satisfy Part L of the Building Regulations, which sets the minimum thermal standard. We install to a 0.16 W/m²K U-value and handle the full building-control notification on your behalf, so there is nothing for you to arrange. On cold-roof builds we fit 25mm eaves ventilation as standard — important in this damp coastal-hinterland air — to keep the roof space dry and clear of condensation. Documented compliance also counts when you come to sell.
Warranties and Long-Term Performance
Both Knauf Earthwool and Superfoil come with manufacturer warranties, and our installation work is covered for 10 to 25 years depending on the product chosen. Once fitted correctly, roof insulation holds its performance for decades with no upkeep, so the yearly saving of roughly £200 to £400 keeps building long after the work is finished. Every job begins with a free, no-obligation survey and a fixed-price quote — no high-pressure sales and no jargon.
How our Roof Insulation service works in Waterlooville
Take a look below to find out how our Roof Insulation service works in Waterlooville,
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Book your free Waterlooville survey
Roof insulation significantly reduces heat loss through the roof structure, lowering energy bills for Waterlooville homeowners by around £200 to £400 a year.
Upgrading your roof insulation can raise your property's EPC rating, which matters increasingly for property sales and lettings across Waterlooville and the wider Havant area.
Both pitched and flat roof insulation options are available, using Knauf Earthwool or Superfoil products to suit the post-war estates and bungalows found across Waterlooville.
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Receive your fixed price quote
A survey of your Waterlooville property to assess the current roof insulation condition and recommend the most suitable product and approach for your roof type.
If you receive qualifying benefits or live in a lower-EPC home, you may be eligible for ECO4 or Great British Insulation Scheme funding — we’ll help you check, and where it applies we carry out the work under those schemes.
Professional installation of your chosen roof insulation product, followed by building regulations notification — which we handle on your behalf — and full warranty documentation.
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Professional Roof Insulation service provided
A warmer, more comfortable home with consistent temperatures and fewer draughts from the roof area, welcome through the damp Solent-hinterland winters.
Lower heating costs from the first winter after installation, typically £200 to £400 a year, with savings that continue for the lifetime of the insulation.
Full compliance with Part L Building Regulations, with proper documentation for your records and any future property transactions.
How much does Roof Insulation cost in Waterlooville?
Roof insulation costs in Waterlooville depend on the product chosen and the size of the roof area. Superfoil multifoil insulation is typically priced between £1,200 and £1,800, while Knauf Earthwool mineral wool ranges from £900 to £1,200. The final figure depends on roof type, access, and any preparatory work required before installation can begin.
We provide a fixed quotation after surveying your Waterlooville property, covering all materials, professional installation, building regulations notification, and full documentation, including warranties of 10 to 25 years. There are no hidden charges — the price we quote is the price you pay.
Properly installed roof insulation can save homeowners around £200–£400 a year on heating bills, and a warmer roofline often lifts your EPC rating by a band or two — increasingly important for property valuations and energy efficiency rules. Plenty of households across Cowplain, Horndean, Denmead and the wider area have already seen the difference on their bills and their energy performance certificate.
If you receive certain benefits or qualify under the ECO4 or Great British Insulation Scheme, we’ll help you check your eligibility and can carry out the work under those schemes.
The Waterlooville suburbs we provide Roof Insulation services to:
Berewood, Blendworth, Catherington, Clanfield, Cowplain, Crookhorn, Denmead, Hambledon, Horndean, Lovedean, Purbrook, Stakes, Wecock Farm, Widley
Our services in Waterlooville
Roof Insulation Waterlooville Nearby
Why Choose us for Roof Insulation in Waterlooville?
Award-Winning Services
We have been recognised as the 'Best Insulation Installation Firm Hampshire - 2023' by the Southern Enterprise Awards, an independent awarding body.

Guaranteed energy savings
We guarantee up to 35% lower energy bills by slashing heat loss, backed by our free survey, transparent results and full satisfaction pledge.

Proven Accredited Reliability
Checkatrade and Google reviews from Hampshire locals verify our punctuality, spotless sites and top-quality services - independent proof we deliver every time.

True Local Hampshire Experts
Fast same-week surveys and quotes, as well as tailored solutions for local projects mean quicker installs and better results than out-of-area firms.

40+ years of experience
With over 40 years of experience in insulation and home improvements, our team quickly diagnoses issues, gives better advice, and delivers installations done right the first time.

No-obligation surveys
Our surveys are always free with zero obligation. No high-pressure sales or jargon: just straightforward facts and options, respecting your decision every time.


Frequently asked questions
Take a look at the Frequently Asked Questions regarding our Roof Insulation services in Waterlooville.
What roof insulation do you use in Waterlooville?
We install Knauf Earthwool mineral wool and Superfoil multifoil insulation. Earthwool is fitted to 300mm depth between and over the rafters, while Superfoil delivers high thermal performance in a thinner profile. The right choice depends on your roof type, available space, and budget.
How much does roof insulation cost in Waterlooville?
Superfoil installations typically cost £1,200 to £1,800, while Knauf Earthwool installations range from £900 to £1,200. We provide a fixed quote after surveying your Waterlooville property.
Are building regulations required?
Roof insulation work needs to be notified under building regulations. We handle this notification on your behalf as part of the installation, ensuring the work is properly documented and compliant with Part L requirements.
What U-value is achieved?
Our roof insulation installations target a U-value of 0.16 W/m²K, which meets the requirements of Part L of the Building Regulations. This level of thermal performance significantly reduces heat loss through the roof.
How long does installation take?
Most installations are completed in one to two days, depending on the size of your roof and the product chosen. Knauf Earthwool laid to 300mm and Superfoil multifoil both fit around your home with minimal disruption, and we maintain the 25mm eaves gap for ventilation as we work.
About Waterlooville
Waterlooville
Featured Business LocationLoft Insulation Specialists near Waterlooville
general contractor, manufacturer, service
5 stars (8 reviews)Phone: 023 9326 7900Nearby Suburbs






