Cost of Loft Conversion in Eastleigh (2026)
A typical loft conversion job in Eastleigh costs £31,500 at the budget end and £78,750 for a full-spec install, per conversion. Outside peak season you'll usually get booked in within three to four weeks; summer runs tighter.
Why loft conversion costs more in Eastleigh
Eastleigh is a small town of around 54,000 in Hampshire. The housing is mostly period cottages, Edwardian villas and 1930s semi-detached housing alongside newer commuter developments. That matters: older properties usually mean more pipework, rewiring and retrofit surprises, while newer builds in districts like SO50, SO53 tend to be quicker jobs with standardised fittings. Local trade prices sit a little above the UK average, which tracks with Hampshire labour and material costs.
For loft conversion, Eastleigh sits roughly 5% over the UK average, with quotes landing £31,500 to £78,750 per conversion and a smaller pool of local firms to draw on. A lot of South East firms work both London and local jobs. Rates usually track London with a small discount, so you're rarely getting a bargain. Peak season runs May to September and good tradespeople can be three to four weeks out. Out of season is the time to price round.
Most loft conversion work in Eastleigh runs 8-14 weeks, costing £31,500 to £78,750 per conversion; the local rate sits roughly 5% over the UK average. Building jobs are labour-heavy, and materials have moved fast, brick, timber, steel, insulation and board are all 20 to 40 percent up on pre-2022. FMB and TrustMark are your best signposts for a proper builder. On anything bigger than a loft conversion, get a Building Control officer involved from day one; fixing non-compliance later costs a fortune.
Loft Conversion cost breakdown in Eastleigh: £31,500 to £78,750
Simple Velux conversion with no structural changes
Dormer conversion with new stairs and ensuite
Hip-to-gable or mansard conversion, two rooms plus ensuite
What affects the price of loft conversion in Eastleigh?
- Type (Velux, dormer, hip-to-gable, mansard)
- Structural steel requirements
- Ensuite addition
- Party wall agreements
- Planning permission (where PD is insufficient)
Eastleigh runs 5% over the UK average for loft conversion
Eastleigh sits in the building & construction market at a cost multiplier of 1.05× the UK national average. That puts Eastleigh loft conversion prices at £31,500-£78,750 versus the UK average of £30,000-£75,000 per conversion.
Loft Conversion cost calculator: Eastleigh
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What's typically included in a loft conversion quote
- Structural calcs and Building Control
- Steels, joists and floor
- Stairs and Velux/dormer
- First and second fix
- Plastering and decoration
Frequently asked questions
How much does loft conversion cost in Eastleigh?
Budget £31,500 to £78,750 per conversion for loft conversion in Eastleigh. Prices here are around 5% more expensive than the UK average. What moves a quote inside that range is mostly building contractor day rates in Hampshire and the specific material list for your job.
How long does loft conversion take in Eastleigh?
A straightforward loft conversion job in Eastleigh runs to 8-14 weeks. You can lose days to things outside the contractor's control: parts on backorder, awkward access, or a firm slotting your job around existing bookings. Ask for a start date and expected finish up front.
What's included in the price of loft conversion in Eastleigh?
A proper loft conversion quote in Eastleigh should cover: Structural calcs and Building Control; Steels, joists and floor; Stairs and Velux/dormer; First and second fix; Plastering and decoration. If any of those aren't itemised on your quote, push back and ask. A written guarantee with a clear warranty period is reasonable to expect on this kind of work.
Is loft conversion cheaper in Eastleigh than the UK average?
Loft Conversion in Eastleigh runs around 5% more expensive than the UK average. The UK-wide benchmark for this job is £30,000 to £75,000 per conversion; Eastleigh quotes tend to land between £31,500 and £78,750. Handy to know what the average actually looks like before you price round.
Do I need planning permission for loft conversion in Eastleigh?
Permitted Development covers many loft conversions in England (40m³ terraced, 50m³ semi/detached). Dormers to the front, conservation areas and listed buildings require planning consent. If the property sits in a conservation area or is listed, ring Hampshire Council before you book anything in. It's a free call and saves a world of grief later.
How do I get a fair loft conversion price in Eastleigh?
Get at least three written, itemised quotes so you can compare like for like, and tell each firm exactly the same brief. A basic loft conversion job in Eastleigh starts around £31,500, while a complex one can reach £99,750 per conversion. Quotes near the bottom of that range usually mean a more basic spec, not a better deal, so check what's actually included before you choose on price alone.
See all loft conversion prices across the UK or browse all tradespeople costs in Eastleigh.
More building & construction in Eastleigh: Kitchen Installation costs, Single Storey Extension costs, Plastering (Per Room) costs, Wall & Floor Tiling costs.