Is It Time?
When Should You Consider a Full Roof Replacement?
Many homeowners ask whether a repair is enough. As specialist roofing contractors covering Buckinghamshire, Hertfordshire and North London, we recommend a full replacement when we see the following - because ongoing repairs on a failing roof cost more in the long run than doing the job properly once.
Daylight in the loft space
If you can see pinpricks of daylight from inside your loft, the felt underlay has perished. This is not a repair job - the covering material must come off and the roof rebuilt from batten upward.
Granule shedding from concrete tiles
Sandy grit accumulating in your gutters or on the ground below means your concrete tiles are shedding their weathering surface. Once granule loss begins at scale, full replacement is more economical than repeated patching.
Nail sickness in older [[slate roofs|/roof-repairs/slate-roof-repairs]]
Common on Victorian properties across Chorleywood, Hertford and Barnet - the original iron nails have rusted away, causing slates to slip progressively. Re-nailing is a temporary fix; a full re-roof with stainless fixings is the correct solution.
Sagging or uneven roofline
A roofline that dips, waves or shows a visible lean indicates structural timber fatigue beneath. This requires a full strip, rafter assessment and often partial timber replacement before any new covering goes on.
Repeated leaks from the same areas
If the same valleys, hips or ridge areas are leaking despite previous repairs, the underlying structure is failing. Ongoing patch repairs are false economy - a full roof investment is the lasting answer.
A roof over 50 years old with original underlay
Bitumen felt from the 1960s and 1970s has a finite life. Even if the tiles look intact, the secondary waterproofing layer beneath has usually perished, leaving your property one hard winter from a significant ingress.
Not sure whether repair or replacement is right for you? Read about our roof repair service - we will always give you an honest assessment at your free survey.
Specification Matters
The Right Material for Your Property - Why Getting This Wrong Is Costly
We do not believe in "standard" roofs. The housing stock across Bucks, Herts and North London spans four centuries of construction - and each era has a material that is architecturally and technically correct. Fitting concrete tile to a Victorian terrace in a conservation area is not just aesthetically wrong, it can trigger enforcement action. Fitting clay plain tile on a post-war semi that requires a steep-pitch interlocking product risks failure in the first hard frost. Specification is everything.
Natural Slate
Premium - 80 to 100+ year lifespanThe material of choice for Victorian and Edwardian properties across Chorleywood, Rickmansworth, Gerrards Cross and Amersham. We source Welsh and Spanish slate in matched grades and thicknesses, fixed on new breathable membrane with stainless steel fixings. No nail sickness. No copper clips that corrode. Just a roof that outlasts you.
- 80-100+ year lifespan
- Essential for conservation areas
- Naturally fire & frost resistant
- Adds significant property value
Clay Plain Tile
Heritage - 60 to 80 year lifespanThe definitive roofing material for interwar semis across Watford, St Albans, Barnet and Edgware. Clay plain tiles breathe correctly, age beautifully, and where matching originals are available, allow a like-for-like replacement that satisfies conservation officers. We source handmade and machine-made profiles to match your street.
- 60-80 year lifespan
- Authentic period appearance
- Frost-rated for UK winters
- Colour-stable over decades
Concrete Interlocking Tile
Practical - 40 to 50 year lifespanThe correct and cost-effective choice for post-war housing stock across Hemel Hempstead, Hatfield, Luton and the newer estates of Bucks. Modern concrete interlocking tile with a dry ridge system - no mortar at the ridge that will crack and let water in - carries a 30+ year manufacturer guarantee and performs to the same BS 5534 standard as any premium material.
- 40-50 year lifespan
- Dry ridge as standard
- Broad colour & profile range
- Excellent value for money
Fibre Cement & Composite
Modern - 40 to 50 year lifespanWhere structural load is a concern - older properties in North London with tired rafters, or large extensions - lightweight fibre cement and composite tiles deliver the look of slate or clay at a fraction of the weight. Ideal for converted loft spaces and properties where full structural reinforcement would otherwise be required.
- 40-50 year lifespan
- Significantly lighter than slate
- Slate and clay aesthetics
- Impact & UV resistant
Conservation Area Specialists
A significant proportion of properties across Chorleywood, Gerrards Cross, Berkhamsted, Rickmansworth, Barnet and Hadley Wood fall within designated conservation areas. We check conservation area status for every property before specifying materials - reclaimed Welsh slate where required, lime mortar on period chimneys, cast iron guttering profiles on heritage street elevations. We handle this correctly so you do not have to navigate the planning system yourself. See our slate roofing service for more on heritage specifications.
What to Expect
How We Install a New Roof - From Survey to Sign-Off
No subcontractors. No agency crews. The same experienced Kingsway team that surveys your roof installs it and signs it off. Here is exactly what happens at every stage.
Free Survey & Written Report
We inspect your roof thoroughly - tiles, slate, ridge, hips, verge, chimney flashings, valleys and guttering. You receive a written condition report and a clear recommendation before we discuss a penny of cost.
Itemised Fixed-Price Quote
Every element is broken out in writing: material type and grade, membrane specification, lead code at flashings, ridge and verge system, scaffold allowance, and structural timber provisional. The figure we quote is the figure you pay.
Scaffold & Full Strip
We erect scaffold to the correct specification for your property and street - including pavement protection on busy North London elevations. Full strip of existing tile or slate, underlay, and battens back to the rafter. Structural timber assessed and any repairs agreed before the new roof goes on.
New Roof Installation
New breathable membrane installed, treated timber battens at the correct gauge for your chosen material, covering laid to BS 5534, dry ridge and dry verge systems, all lead work at chimney and valley junctions completed in Code 4 and Code 5 as specified.
Completion & Paperwork
Site cleared of all waste. Gutters checked and cleared. Full photographic completion report provided. 10-year workmanship guarantee certificate issued. Scaffold struck on your satisfaction - not before.
Why Kingsway
Why Homeowners Across Bucks, Herts & North London Choose Us for New Roofs
15+ Years Re-Roofing This Region
We know the housing stock intimately - Victorian Welsh slate terraces in Chorleywood and Barnet, interwar clay tile semis in Watford and St Albans, post-war estates in Hemel and Hatfield. Every property type and period is familiar territory.
10-Year Written Workmanship Guarantee
Every new roof carries a written 10-year workmanship guarantee on all labour. Materials carry independent manufacturer warranties - up to 40 years on premium concrete tile and fibre cement, lifetime guarantees on some natural slate products.
Checkatrade Vetted - Every Review Independently Verified
Read our Checkatrade reviews before you call. Every review is independently verified by a homeowner who hired us. We'd expect you to check, and we're proud of what you'll find.
Fixed-Price Quotes - No Surprises
Our itemised written quotes break out every element - materials, labour, scaffold, lead work, structural provisional. The figure we quote is the figure you pay. No day-rate ambiguity, no retrospective extras.
Conservation Area Expertise
We confirm conservation area status before specifying materials and have experience working directly with conservation officers in Chiltern, Three Rivers, Dacorum and the London Boroughs of Barnet and Harrow.
No Subcontractors - Ever
Your roof is installed by Kingsway roofers, not a subcontract crew hired for the week. The team that surveys it installs it and signs it off. Continuity and accountability from start to finish.
Coverage
New Roof Installations Across Buckinghamshire, Hertfordshire & North London
We cover the full spread of our region - from the Chilterns in Bucks through the Herts commuter belt and into the northern London Boroughs. If you are in any of the areas below, we can be with you for a free survey within the week.
Not on this list? Contact us - we cover the full surrounding area and will confirm coverage when you get in touch.
Related Services
Other Services You May Need
Not sure if you need a full replacement? Read about our repair service first.
Existing structure sound but tiles at end of life? Re-roofing may be the answer.
New roof, old chimney? We repair, repoint and reflash chimneys on every new installation.
New roof is the ideal time to replace tired timber fascias with maintenance-free UPVC.
Gutters checked and cleared on every new roof. Full replacement also available.
Extensions and garages with flat roofs - EPDM and GRP systems installed alongside pitched work.
Common Questions
New Roof FAQs - The Answers You Actually Need
Book Your Survey
Free Survey Booking Form
Fill in your details and we'll call you back within 2 hours to arrange your free roof survey.
Explore More
Related Services
Complete strip and re-roof service with modern materials and minimal disruption.
re-roofing
Full strip and re-roof for tired, leaking or end-of-life roofs.
Velux and rooflight leak repairs and replacement.
Commercial and industrial roofing services.
