Portsmouth & surrounding areas
Lintel Replacement & Repair in Portsmouth
Cracking or sagging above a window or door near Portsmouth, diagnosed honestly, then repaired or replaced.
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Signs you might need lintel repair near Portsmouth
- Cracking in the brickwork above a window or door
- A visibly sagging or deflecting lintel
- Rust staining bleeding through render or brickwork above an opening
- Spalling concrete directly above a window or door
- Doors or windows that have started sticking or no longer close properly
- Step-shaped cracking rising from the ends of a lintel
If you recognise any of these on a property near Portsmouth, the right fix depends on the actual cause — not every failing lintel needs full replacement.
Waterlooville, near Portsmouth · recent project
Three angle iron lintels
What we found: Three steel angle iron lintels showing severe corrosion, bad enough that the rust was physically lifting the brick courses above.
What's causing it: As steel corrodes, it expands, and once that expansion has nowhere to go, it pushes against the brickwork resting on top — in this case, severely enough to visibly lift the courses directly above the lintels, a sign the corrosion had been progressing for some time.
What we did: All 3 lintels were replaced, with new trickle vent trays added to help manage moisture going forward. Completed in a single day.
Why lintels fail near Portsmouth
Lintels above windows and doors fail for a few real reasons: moisture penetration causing rust in steel lintels or spalling in concrete ones, and for boot lintels specifically, rotation — since the outer toe has no bottom bearing surface, relying entirely on the inner masonry leaf for support. Either cause shows up as cracking in the surrounding brickwork, which is why correct diagnosis matters before deciding between repair and full replacement.
Trickle vent trays, like the ones fitted on the Waterlooville job above, help manage condensation and moisture around a replaced lintel, reducing the chance of the same corrosion recurring.
Lintel replacement cost near Portsmouth
Most lintel jobs near Portsmouth start from around £800, though the final number depends on the lintel type, how many need attention, and how easy the property is to access. Here's what actually moves the price:
- Lintel type — steel angle iron lintels are generally more straightforward to replace than boot lintels, which need both skins of brickwork supported
- Number of lintels — jobs covering multiple openings, like the Waterlooville example above, cost more per visit but less per lintel
- Extent of surrounding damage — cracked or displaced brickwork above the lintel adds making-good time
- Repair vs replacement — early-stage corrosion can sometimes be repaired in-situ rather than fully replaced, which is less disruptive and less expensive
A site survey is the only reliable way to get an accurate number for your property, and ours are free across Portsmouth and the surrounding area.
Common questions
What's a trickle vent tray, and why does it matter?
A trickle vent tray sits above a replaced lintel to help manage condensation and moisture, reducing the chance of the same corrosion recurring. We fit these as standard on relevant steel lintel replacements.
How much does lintel replacement cost near Portsmouth?
Most jobs start from around £800. The exact figure depends on the type of lintel, how many need replacing, and how easy the property is to access, so a site visit is the only way to get a firm number.
Can a lintel be repaired instead of replaced?
Often, yes. A concrete lintel showing early corrosion can sometimes be repaired in-situ using a structural repair mortar, which is less disruptive and less expensive than full replacement. Once a lintel has failed structurally, replacement is usually the safer option.
Noticed a problem like this?
Lintel failure can progress a long way before it's obvious from outside, and with over 30 years of experience, we know how to properly assess whether repair or full replacement is the right call for your property. Every job is carried out to a high standard, whether that's a single steel lintel or a more involved boot lintel replacement. If you've noticed cracking or sagging above a window or door near Portsmouth, get in touch today for a free survey and a clear, fixed-price quote.
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Areas we cover
Waterlooville, Havant, and the wider Hampshire area.