Refurbishment, repair, roofing, tiling, plasterboard and general building work all sit under one roof at Lian Construction, a London construction company serving homes, landlords and commercial clients in every borough.
Harrow overview
Construction Company in Harrow
Outer North West London borough with suburban family homes and consistent demand for roof and general repair work. Harrow falls well within the West London ground Lian Construction covers on a regular basis. For multi-trade construction and building work in Harrow, that local knowledge means fewer surprises once work is on site and a team that already understands the borough's typical property stock.
Harrow sits in outer north west London, and its housing stock reflects that suburban character. Much of the borough was built up during the interwar period, when Metroland-style expansion brought semi-detached houses, bay-fronted terraces and some detached family homes along tree-lined streets. This 1920s-1930s stock typically features solid brick construction, pitched tile roofs, and generous gardens, which is typical of outer London suburbs that grew around tube and rail expansion. Alongside this there are pockets of older Victorian and Edwardian terraces nearer established centres, plus post-war infill and more recent low-rise development filling gaps on larger plots. Roofs on the interwar semis are now approaching or past their original expected lifespan in a lot of cases, in line with the pattern seen across similar outer London suburbs of that era. Clay or concrete tiles laid in the 1920s and 1930s are often due some attention, whether that's re-roofing, repointing ridges, or dealing with slipped tiles and blocked valley gutters. General wear on render, guttering, fascias and roofline timber is also common simply because a lot of this building fabric is now close to a century old.
Harrow's suburban family housing generates steady, ongoing demand for maintenance and repair work rather than large speculative building projects. Owner-occupiers in semi-detached and detached homes tend to invest in upkeep, roof repairs, guttering, extensions and general refurbishment, as part of looking after a long-term family home rather than a quick flip. That creates a fairly consistent stream of repair and small-to-medium refurbishment jobs across the borough, rather than the sharper boom-bust patterns seen in areas driven more by flat conversions or short lets. In practice this means it's usually worth budgeting for routine roof and exterior maintenance rather than waiting for a problem to become urgent, since ageing interwar roofs and rendering tend to degrade gradually rather than fail all at once. For landlords with rental stock in the borough, staying on top of general repairs is often more cost-effective than reactive fixes, particularly where several properties share similar age and construction. Because demand tends to be steady rather than driven by seasonal spikes, homeowners generally have more time to plan work properly and compare quotes, though it's still sensible to book roofing work ahead of autumn and winter when contractors tend to get busier.
Typical construction company day rates and project bands
Item
Typical range
Labourer
£120–£180/day
Skilled trade
£220–£320/day
Small multi-trade project
£12,000–£35,000
General London market guidance, not a fixed quote — actual pricing depends on a site survey. Full breakdown: cost guide.
Building regulations, party wall matters and getting the paperwork right
A lot of construction and refurbishment work in London touches some form of regulation, and it's worth knowing roughly where you stand before work starts. Structural alterations, most roof replacements, and anything affecting fire safety, insulation levels, drainage or means of escape typically fall under the Building Regulations Approved Documents, covering areas like structure, fire safety, ventilation, damp resistance and thermal performance, and need either full building control sign-off from the local authority or a registered competent-person scheme route, depending on the trade involved. Electrical work connected to a project usually needs to be certified by a suitably qualified and registered electrician under Part P before it's signed off, and this is separate from the building work itself even when it happens on the same site visit and same overall programme. If your property shares a wall, floor or garden boundary with a neighbour and the work is close to or touches that boundary, cutting into a party wall, excavating near foundations, building above the line of an existing party fence wall, the Party Wall etc. Act 1996 may apply, which means formal written notice to neighbours before certain works begin, usually with a set notice period before work can start and the possibility of a party wall surveyor being appointed if a neighbour dissents or simply doesn't respond in time. Listed buildings and properties in conservation areas often need planning consent even for works that would otherwise be permitted development, particularly for roofing materials, windows, render and anything visible from the street, and some conservation areas have Article 4 directions that remove permitted development rights altogether, meaning even a like-for-like repair can technically need consent first before scaffolding goes up. Flats and leasehold properties add another layer again, since a lease often requires the freeholder or managing agent's written consent before internal alterations, flooring changes or plumbing work, regardless of what planning or building control require, and that consent can take weeks to come through if it's not requested early in the process. We flag where we think consent, notice or building control involvement is likely needed for a project and can put together the drawings, specifications or structural information a building control officer or planning department typically asks for, though the responsibility for obtaining planning permission or serving party wall agreements sits with the property owner unless we've specifically agreed otherwise as part of the project scope in writing beforehand.
Local presence, London coverage
Across inner London and out to wider Greater London, Lian Construction supports homeowners, landlords and commercial clients who need dependable building work with clear communication.
General building, refurbishment and repair servicesResidential, landlord and commercial projectsAll London coverage, borough to boroughRegular coverage of Harrow and the wider West London area
Signs to look for
Do you need construction company in Harrow?
A previous contractor has stopped work partway through the job and you need someone to survey what's been done and finish it properly before selling or letting.
A rental property needs refurbishing between tenancies and the work spans several trades: repairs, plastering, tiling, roofing and decorating, all within a tight turnaround.
You're planning a loft conversion or rear extension and need repairs, roofing and finishing trades coordinated as one project rather than several separate contractors.
Musty smells, damp patches or flaking paint on solid brick walls suggest moisture is trapped behind an unsuitable modern cement-based finish applied years ago.
How the work is handled in Harrow
Step 1Discuss the project and constraints
Step 2Survey the site
Step 3Prepare a clear scope
Step 4Deliver the work with one point of contact
Questions
Construction Company questions in Harrow
How quickly can Lian start multi-trade construction and building work in Harrow?
Harrow is part of our regular West London coverage, so once we've surveyed the property we can usually confirm a start date quickly. Send the address and scope and we'll arrange the next step.
Do you cover all of Harrow?
Yes. Harrow falls within the area Lian Construction serves across Greater London.
What's the best time of year to get roofing work done in Harrow?
Spring and summer tend to be the most practical window, since dry weather makes the work easier and safer, but this is also when contractors are busiest and lead times can stretch out. Booking ahead in late winter for spring work often means more availability and choice. Roofing can still be carried out in autumn or mild winter spells if needed, though weather delays become more likely, so it's generally best not to leave it until the last minute if you know a repair is coming.
What questions should I ask a builder before hiring them?
Worth asking: what deposit is required upfront, since reputable contractors typically ask for 10 to 25% with the rest staged against completed work, not half or more before a tool touches the property. Ask for a written quote rather than a verbal figure, and whether it breaks down labour, materials and provisional sums separately. Ask to see proof of public liability insurance and a verifiable business registration, since that's what tells you who's accountable if something goes wrong. Ask how they handle unexpected finds once walls or floors are opened up, and whether extra work is priced and agreed before it happens rather than appearing on the final invoice. And be cautious of a contractor who can start immediately with no other jobs on, since genuinely busy, well-regarded contractors are usually booked weeks or months ahead.
What type of construction work do you handle?
We handle refurbishment, property repairs, roof work, tiling, plasterboard repair and general building projects for residential and commercial clients.
Do you cover the whole of London, or just certain areas?
The whole of London. Lian Construction works across all 32 boroughs plus the City of London.
Talk to Lian Construction about Harrow
Send the site address in Harrow, photos if available, and the construction company work you need. We can review the scope and arrange the next step.