The Insulation Company helps homeowners arrange loft-insulation assessments, quotations and installation services across the UK.
South East · England
Southsea is the dense Victorian seaside quarter of Portsmouth, built out across the south of Portsea Island as the resort and the naval town grew. Street after street of tightly packed Victorian and Edwardian terraces run down toward the seafront at Eastney and Southsea Common, many now split into flats or run as shared houses. The lofts are often genuinely low and shallow, headroom is tight, and the seafront exposure is relentless. Loft work here has to respect both the cramped period roofs and a demanding coastal setting.
We help homeowners across Southsea and the wider Portsmouth area arrange loft assessments, quotations and installation. Depending on the service, work may be completed by The Insulation Company or an approved installation partner.
Southsea's terraces frequently have low, shallow lofts with awkward access over a stair and thin original insulation that has compressed with age. Headroom is often the real limit: there is simply little depth to build up into, which shapes both the method and the material. Many of the larger bay-fronted houses have been converted into flats or HMOs, so the loft usually sits above a top-floor flat and access and responsibility need establishing first. Closer to the front, seafront exposure and older roof construction make ventilation an early consideration rather than an afterthought.
Right on the exposed south coast, Southsea gets salt-laden, humid sea air and driving wind, so ventilation matters as much as insulation. In these shallow terrace lofts it is easy to block what little airflow the eaves allow, so we keep them clear and treat airflow and insulation together. Where headroom is very limited we recommend a build-up and material suited to the actual space, and in converted houses and HMOs we sort out loft access and ownership before any work.
The exposed seafront position and dense, often converted housing mean humidity and condensation are common in Southsea lofts. Insulation alone will not cure a moisture problem, so we check the cause — airflow, a leak or an extractor venting into the roof — before recommending work.
In Southsea, cost is driven mainly by loft access and limited headroom on the terraces, whether the property is a conversion or HMO, whether old insulation needs removing, and any boarding or ventilation work. Tight seafront-area parking can add to a job.
You tell us about your property and what you have noticed in the loft. Nothing is committed at this stage.
We review the property age, roof type, loft access and any existing insulation, moisture or ventilation concerns.
Where required, a survey or assessment is arranged so measurements and conditions can be checked in person.
You receive a clear written recommendation and quotation setting out the scope, materials, price and any guarantee.
Work is completed by The Insulation Company or an approved installation partner, with access protected throughout.
Final checks are carried out, the loft is left clean, and relevant documentation and any guarantee are supplied.
These are examples of our work elsewhere, shown to illustrate what a project involves. They did not necessarily take place in Southsea (Portsmouth).
Emma's front and rear bedrooms, split by a central chimney breast, both cooled quickly. We insulated the 40m² floor on both sides of the chimney to a full 300mm depth.
Example from our project library
Tom noticed condensation on the bedroom windows and rapid overnight heat loss. We gave his compact 31m² loft a full 300mm Knauf glass mineral wool layer, fitted carefully around the hatch and low edge bays.
Example from our project library
Peter's upstairs ran consistently colder than the ground floor even after a heating service. The 46m² loft was almost completely uninsulated, so we installed a full 300mm Knauf glass mineral wool layer from hatch to gable.
Example from our project library
We help homeowners across Southsea and the wider Portsmouth area, from the seafront and Southsea Common to Eastney, Milton and Fratton. Request an assessment and we'll confirm coverage for your postcode.
Usually yes, but limited headroom is the main constraint on these terraces. We assess the real depth available, keep the eaves clear for airflow, and recommend a build-up and material suited to the space rather than a standard depth that won't fit.
The loft usually sits above the top-floor flat, so access and who is responsible for it need establishing first. Once that's clear, we assess the space and recommend suitable work, keeping the eaves clear for airflow.
Customer feedback
Feedback from customers who have used our insulation services.
Recommended. Friendly, efficient and did a great job in two very dirty loft spaces. All the waste shifted quickly. Top job. Thanks.
These guys are the best! Rory and Leo were very kind to me and got it all done in just a day. Thank you.
Jake and Rory supplied and fitted the insulation in our loft. They did an excellent job and I would recommend them.
It was refreshing to have two young lads who came in and worked incredibly hard on my loft. They came early and left late to get the job done. The best workers I’ve had in a long time, and I would recommend them 100%.
Good lads. They were professional throughout, took extra care and left the place spotless. We can already feel the difference with the fresh insulation.
Top man Leonardo with the insulation. Did the insulation in a day.
