Buckinghamshire · England
Little Marlow Window Mastic
Mastic around window and door frames, sills and patio doors for homeowners, landlords and businesses in Little Marlow. Fully insured, ARBOMaster approved and guaranteed for a year.
- Sealant in the wrong colour for the frame
- Gaps where the sill meets the wall
- Draughts coming in around windows and doors
Window mastic in Little Marlow
Homes in Little Marlow have every kind of window: uPVC, aluminium, timber and composite, along with patio doors, French doors and sills. The sealant is chosen to suit the frame material and the wall. If you have water coming in at the bottom corners of a door and cold air getting in at the frame edge, we can help.
Homes in small places like Little Marlow often stand in the open, with little to shelter their windows from wind and rain. That exposure dries out and cracks the mastic around frames and sills faster.
Big or small, it’s backed by our one-year guarantee in Little Marlow and across Buckinghamshire.
- Where
- Little Marlow (SL7)
- Wider area
- Buckinghamshire
- Guarantee
- 12 months on all our work
- Quotes
- A clear quote up front
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026
Should I try it myself first?
Sealing over old silicone is the commonest DIY error. Silicone doesn’t stick to old silicone, so it lifts and traps water and mould underneath. All the old material has to come out first.
Too much sealant is as bad as too little. A thick, smeared bead looks untidy and doesn’t move well, and the joint depth matters as much as the finish.
Places near Little Marlow
What else we do in Little Marlow
How to look after the new joints
So the new joints stay in good condition:
- Avoid blasting the frames with a pressure washer
- Clear any debris from frame drain holes
- Use gentle cleaners on frames and sealant
- Paint up to the joint, not over it
Silicone can’t generally be painted, so mention any painting plans before work begins. There are paintable sealants for joints that need it.
Water trapped behind a failed joint can start rot in timber frames and sills. Rotten timber needs a joiner, not a sealant, so it pays to reseal before that happens.
The process
We work through the job in order: protection first, then preparation, sealing and a tidy-up. For most jobs that takes most of a day for a typical house, less for a few frames, and the area is left clean. Somewhere as small as Little Marlow, access is often the only tricky part. For outside work, also let us know about exposed walls and any outbuildings involved.
- We start by checking each window and door with you.
- We remove the old mastic and clean the frame and the wall.
- Where gaps are deep, backing rod goes in first.
- New exterior sealant goes on in a matching colour and is tooled smooth.
- We clear up and check every joint is fully closed.
Before we arrive
- Mention any parking rules near the property
- Where the joints are inside, avoid wetting them before we arrive
- On commercial sites, let us know about site rules
Ask for a quote
It all starts with a short chat. Tell us what’s wrong, where it is and how much there is, and we will explain how we’d tackle it. Whenever you are ready, phone 0345 464 0079 or drop us an email.
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When something else is needed
Honest advice matters more to us than a booking, so here’s what sealant cannot fix:
- Broken hinges, locks or handles
- Penetrating damp from a failed cavity tray or render
- A door that needs adjusting, rehanging or new seals
If you’re not sure, just ring 0345 464 0079 or send us an email and we’ll give you a straight answer before booking.
What we seal
- Composite doors
- Patio & French doors
- Timber windows & doors
- uPVC windows
- Window sills
- Aluminium frames
What window mastic looks like in Little Marlow
Rainfall in the South East is lower than in much of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day. Historic houses like Cliveden (about 2.9 miles south-east) are a reminder that the area around Little Marlow has older buildings as well as new. In older buildings, older frames set in brick or stone need a sealant that suits them, and sometimes that’s traditional sand mastic.
If you let a flat or house near Bourne End station, sound mastic around windows and doors keeps out the draughts and damp that tenants notice first. For site and facilities teams at buildings such as Little Marlow CofE School, its window and door frames need their mastic kept sound, just like a home’s.
Little Marlow is about 2 miles north-east of Marlow, in Buckinghamshire. From the centre of Little Marlow to the outskirts, window mastic is available for homes and businesses alike, from flats and houses to offices and hotels. We cover 263 towns and villages across Buckinghamshire. There’s also a page for Reading, roughly 14 miles from Little Marlow.
Postcode districts we cover here for window mastic: SL7. That includes homes and businesses on Church Road, Pound Lane and School Lane. If you’re just outside Little Marlow, we cover Fern (1 mile north-east), Coldmoorholme (1 mile east), Well End (1 mile east), Burroughs Grove (1 mile north-west) and Bourne End (1 mile east). Larger places within reach include High Wycombe (3 miles north), Chesham (10 miles north-east), Amersham (9 miles north-east), Beaconsfield (4 miles north-east), Chalfont St Peter (8 miles east) and Princes Risborough (10 miles north).
Around Little Marlow
In Little Marlow, that means homes and buildings near The Queen's Head pub and Great Marlow School. Little Marlow’s nearest station is Bourne End station, roughly 1.4 miles east. Nearby you will also find High Wycombe Castle (3.3 miles north) and Eden (3.2 miles north). Green spaces nearby include Taplow Lake and Warren Nature Reserve.
Surface by surface
Composite doors
An exposed front door gets wind-driven rain, and the top and bottom corners tend to fail first. We pay most attention there.
Patio & French doors
Patio and French doors have the longest joints on most houses. Most leaks start at the bottom corners, so they get particular care.
Why it’s worth doing now in Little Marlow
A quick bead over the top of old mastic looks like an easy fix, but it won’t grip old, dirty sealant. It peels before long, and water still gets in behind. Proper resealing starts with removing the old joint. Around Little Marlow, older homes often have timber in their floors and frames, and water through a failed joint can rot timber if it’s left.
A few things move the cost up or down: how much old sealant there is and how stubborn it is, whether mould needs treating, and whether the work is at height. We take all of that into account in your quote.
Why choose Mr Mastic in Little Marlow
- Experience in homes, commercial sites and hotels
- One-year guarantee on every job
- More than 20 years in sealant work
- An ARBOMaster approved applicator
See our cost guide and what customers say.
FAQs for Little Marlow
Is Little Marlow within the area you cover?
Yes. Little Marlow is within the area we cover, which takes in towns, villages and rural addresses. We work across London and the South East. Just mention lanes, gates or anything else about the route when you book.
Do you work for landlords with property near Bourne End station?
Yes. We work for landlords and agents as well as householders, and several properties can go on one quote. Just call 0345 464 0079 or email us with the address and what needs doing, and we will give you a clear price.
Is it worth trying it myself?
It depends on the job. Work at height, movement joints, fire-rated gaps and large areas are best left to a professional, while a short indoor joint may be within reach.
Do I have to be there?
Access is agreed with you when the job is booked. For inside work, that normally means someone being in.
What do you put in the joint?
Quality sealants from brands including Arbo and Everbuild, chosen to suit the joint. We will tell you what we’re using and why.
Will new mastic stop draughts?
It will if the frame joint is the problem. We check where the draught is before work begins.
Can you do upstairs windows?
Yes, where they can be reached safely. Tell us about access when you get in touch and we will plan for it.
Can I paint over the new sealant?
That depends on the product. Silicone isn’t paintable, but some hybrid sealants are. Mention any painting plans before any work starts.
Signs you need window mastic in Little Marlow
Mastic ages in the weather. UV light hardens the outside of the bead, and over the years it loses its give, cracks and comes away.
It’s worth asking for a quote if you see:
- Hard, cracked sealant around windows
- Gaps left after new windows were fitted
- Gaps between the frame and the inside reveal
- Black, perished sealant on frames
If you live in an older home near Church of St John the Baptist, the windows may be timber, sash or later replacements, and each needs the right sealant against the wall.
Before you book anyone
- Whether VAT is included
- Whether the sealant suits the joint
- Which colour the sealant will be
- How the joint is cleaned and prepared