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Expert Re-roofing & New Roof Installation in London

Whether you have a pitched or a flat roof, our team is equipped to provide a complete replacement. We work with slate, tile, felt, and modern systems to deliver a durable, long-lasting new roof that enhances your home's value.

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Free written quote No deposit, ever 10-year guarantee
Roof Replacement in South West London by Home Restoration Specialists
15 yrs
On London roofs
4.9
Google rating
160 +
Five-star reviews
£2 m
Public liability cover
24 /7
Emergency response
Why choose Tamar

A brand new roof built for the future.

A new roof is one of the most significant investments you can make in your home. It's an opportunity to eliminate all existing problems and secure your property with a durable, long-lasting solution that protects you for decades.

A full roof replacement in London typically costs between £5,000 and £15,000 depending on roof size, materials, and access. Most residential re-roofs take 3-5 working days. We provide free inspections and detailed quotes with no call-out fee.
Key takeaways
  • Full roof replacement costs £5,000-£15,000 for a typical London terraced or semi-detached house
  • Natural slate costs more than concrete tiles but lasts 75-100+ years vs 40-60 years
  • A complete re-roof typically takes 3-5 working days in dry weather
  • All our roof replacements include new felt, battens, and a 10-year insurance-backed guarantee
  • We handle scaffolding, skip hire, and council notifications as part of the project
Typical costs
WorkTypical rangeFactors
Terraced house re-roof (concrete tiles)£5,000 - £7,500Size, access, chimney work
Semi-detached re-roof (concrete tiles)£7,000 - £10,000Roof area, dormers
Natural slate re-roof£8,000 - £15,000Slate type, roof complexity
Flat-to-pitched conversion£10,000 - £20,000Structural work required
Scaffolding (typical)£800 - £1,500Property height, access
Should you repair or replace?
Roof is 50+ years old with widespread issues
Replace — Patching an old roof costs more over time than replacing once
A few slipped or cracked tiles
Repair — Isolated tile damage is a straightforward repair
Sagging roofline or rotten timbers
Replace — Structural issues need a full strip and rebuild
Persistent leaks after multiple repairs
Replace — Repeated repairs suggest underlying felt or batten failure
Planning to sell within 2 years
Replace — A new roof adds value and removes buyer objections
Reviewed by HRS Roofing Team · Last updated May 2026
Our solutions

Comprehensive roof replacement solutions.

Old, Failing Roofs

For roofs that have reached the end of their lifespan, showing widespread leaks and wear.

Severe Storm Damage

For roofs that have suffered extensive damage from high winds, hail, or fallen trees.

Structural Problems

When the underlying roof structure is rotten or compromised.

Material Upgrades

We can replace your existing roof with a more modern or durable material, such as new slate.

Pitched Roof Replacement

We expertly replace traditional tiled and slate roofs.

Flat Roof Replacement

We upgrade old felt systems to modern, long-lasting EPDM or GRP membranes.

How we work

Three steps. No surprises.

Most roofers vanish between the quote and the invoice. We don't. Here's exactly how a job goes from your call to a finished roof.

01

Free survey & inspection

We come out, climb up, and look at your roof properly — no obligation, no hard sell, no call-out fee. You get a plain-English assessment of what we found and what (if anything) needs doing.

Same-week visits
Photos and notes shared with you
No call-out fee, ever
02

Itemised written quote

A written quote with materials, labour, scaffolding and timeline broken out line by line. We name our materials and our suppliers — no mystery line items, and no deposit required.

Fixed price, no deposit
Materials specced by name
Valid for 90 days
03

The job, properly done

The same lead tradesman from quote to handover. Site cleaned daily, neighbours considered, and a 10-year insurance-backed guarantee handed over once you're happy.

10-year written guarantee
£2m public liability cover
Aftercare for the lifetime of the roof
Warning signs

When Your Roof Needs Replacing

Widespread Leaks

Multiple leaks in different areas of your roof indicate systemic failure rather than isolated damage.

Age of the Roof

Most pitched roofs last 50-80 years. If yours is approaching that age, replacement may be more cost-effective than ongoing repairs.

Sagging Structure

A visibly sagging roofline suggests rotten timbers or structural failure beneath the tiles.

Excessive Repair Costs

When the annual cost of repairs approaches the cost of a new roof, it's time to consider replacement.

Failed Felt or Underlay

If the waterproof membrane beneath your tiles has perished, individual tile repairs will never fully solve the problem.

Energy Inefficiency

An old roof with poor insulation can lead to significantly higher heating bills.

When Your Roof Needs Immediate Action
A roof that has suffered major damage can leave your home vulnerable and unsafe. Our team is ready to act fast to secure your property and prevent further damage.
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What sets us apart

Trade is full of uncertainty. We remove it.

"South West London's period roofs demand specialist knowledge — from Victorian slate to lead valleys and heritage chimneys. We've built our team around getting it right first time, every time."

PH
Patrick Henley
Founder · 22 years on the tools

10-year insurance-backed warranty

Independently underwritten — covers materials and workmanship even if we cease trading.

No deposit. Ever.

You pay on completion, against a finished job you've signed off. Not before.

Fully certified · £2m PLI

CHAS-accredited, fully insured, and registered with the Federation of Master Builders.

Choose wisely

The true cost of cheap work.

A full re-roof is a major investment. Cutting corners on materials or labour will cost you more in the long run through premature failure and ongoing repairs.

Inferior Materials

Cheap imported slates or thin tiles crack and fail within years, requiring premature replacement.

Skipped Preparation

Not replacing rotten battens or damaged felt beneath new tiles leads to leaks within months.

Poor Weatherproofing

Incorrectly installed ridge tiles, valleys, and flashings create leak paths from day one.

No Ventilation

Failing to install proper roof ventilation leads to condensation, rot, and premature timber decay.

FAQs

Things people often ask.

Can't find what you're looking for? Call us on 0203 633 9159 — we answer in person, including evenings and weekends.

Most residential re-roofs take 5-10 working days depending on the size and complexity. We work through light rain with tarps to keep your home dry.

No. We work from the outside and take care to minimise noise and disruption. Your home remains fully habitable throughout.

We work with natural slate, concrete and clay tiles, EPDM and GRP flat roof systems, and lead. We only use manufacturer-approved materials.

Yes. We arrange all scaffolding as part of the project. The cost is included in your quote with no hidden extras.

We aim to attend emergency roof repairs across South West London within 24 hours, often the same day. Call 0203 633 9159 or message on WhatsApp.

No. We provide free no-obligation quotes for roof repairs and replacements across London.

What customers say for roof replacement

"Brilliant job from start to finish. They found rot in the flat roof decking that the previous roofer had missed. Everything replaced properly, cleaned up every day, and the price w…"

— James T., Clapham

"We needed a company that understood period properties. HRS matched the slate colour perfectly — you can't tell it's been re-done. They also spotted a chimney flashing issue we hadn…"

— Sarah M., Battersea

"Very professional team. They explained everything clearly, including why they recommended dry ridge over traditional mortar. The old roof had been patched so many times — it's a re…"

— David R., Balham
Get in touch

Same day response, every time.

Whether it's a leaking valley at 2am or a planned re-roof for next spring, we're the same call. Phone or WhatsApp us, or visit our Lavender Hill workshop.

Office
264 Lavender Hill
London SW11 1LJ
Hours
Mon–Sun, 24 hours
Office hours: 7am–7pm
Areas we cover
Roof leaking right now?
We'll make it safe the same day, day or night.