West Berkshire · England

Window Mastic in Aldermaston Wharf

Window mastic for Aldermaston Wharf, by sealant specialists with 20+ years’ experience. Rated 4.9 on Google from 180+ five-star reviews.

  • Cold air getting in at the frame edge
  • Leaking joints at the ends of sills
  • Sealant in the wrong colour for the frame

Need window mastic in Aldermaston Wharf?

Leave it or put it right?

Choosing the product is half the job. Interior caulk and bathroom silicone are not made for exterior frame joints. An exterior, low-modulus sealant stays flexible in sun and frost. Older cottages and farmhouses around Aldermaston Wharf can have timber floors and frames, where water from a failed joint can cause rot if it’s left.

Homes and businesses are quoted the same way: the amount of work, the access and the products needed, along with when we can work on site. Call for a quick quote and we will go through it with you.

Why us?

  • Anti-fungal silicone where joints get wet
  • We are fully insured
  • An ARBOMaster approved applicator
  • Every job guaranteed for a year

Read our cost guide or customer reviews.

Window mastic for homes and businesses in Aldermaston Wharf

The mastic around a window or door seals the gap between the frame and the wall. When it cracks, hardens or pulls away, draughts and rain get in. Our applicators cut it out and replace it with a flexible, weatherproof sealant. If you have cracked sealant at the sill ends and rushed sealant from a window installation, we can help.

Somewhere as small as Aldermaston Wharf, older homes often have timber frames set in stone or brickwork. Not every older frame suits a modern silicone bead, and sometimes a traditional sand mastic is the better choice.

Whatever the size of the job, you get the same 12-month guarantee in Aldermaston Wharf and across West Berkshire.

Location
Aldermaston Wharf (RG7)
Wider area
West Berkshire
Guarantee
12 months on all our work
Quote
A clear quote up front
Phone
0345 464 0079
Updated
26 October 2026
Applicator reaching up to seal an external door frame on a sunny day

What the job involves on each surface

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.

uPVC windows

We clean the frame edge carefully so the plastic isn’t marked, then the sealant goes in between frame and wall.

DIY sealant or a professional job?

A careful DIYer can reseal a simple joint, like a short, easy-to-reach joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.

Sealing over old silicone is the commonest DIY error. Silicone does not stick to old silicone, so it lifts and traps water and mould underneath. Everything old must be removed first.

Frames and glazing around Aldermaston Wharf

Rainfall in the South East is lower than in much of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.

For landlords with property near Aldermaston station, sound mastic around windows and doors keeps out the draughts and damp that tenants notice first.

Aldermaston Wharf is about 3 miles north of Tadley, in West Berkshire. Every kind of property in Aldermaston Wharf is covered for window mastic. Every job comes with our 12-month guarantee. Aldermaston Wharf is one of 155 towns and villages in West Berkshire where we work for window mastic. You can also see our page for Reading, about 8 miles away.

Jobs for window mastic in RG7 is quoted and booked the same way as anywhere else. Window mastic is available to properties on Wharfside, Basingstoke Road and Watson Close. We also cover the places around Aldermaston Wharf: Lower Padworth (1 mile north-east), Beenham (1 mile north-west), Beenham Stocks (1 mile north), Upper Woolhampton (2 miles west) and Southend (2 miles north). We also work in nearby towns such as Newbury (8 miles west), Thatcham (5 miles west), Burghfield Common (3 miles east), Speenhamland (8 miles west), Spencers Wood (7 miles east) and Calcot (5 miles north-east).

Local landmarks in Aldermaston Wharf

We work in homes and buildings around The Butt Inn and Padworth Common Local Nature Reserve, among other places. There’s a railway station in Aldermaston Wharf itself: Aldermaston station. Well-known places in the area include Thames Valley Police Museum (2.8 miles north-east). Green spaces nearby include Hosehill Lake and Moor Copse Nature Reserve.

Map of Aldermaston Wharf © OpenStreetMap contributors

What happens on the day

Every visit runs the same way: we check the joints, protect the area around them, do the work and clear up. It generally takes most of a day for a typical house, less for a few frames. For a village or hamlet like Aldermaston Wharf, the journey is planned in advance: tell us about narrow lanes, gates, long drives and where we can park. Everything for the job comes with us, so a second trip is avoided where possible.

  1. First, we go round the frames with you and agree the list.
  2. The old mastic is cut out and scraped back to clean surfaces.
  3. Where the gap is deep, backing rod goes in first.
  4. The new sealant goes on in white, brown, anthracite grey, black or clear to suit.
  5. Every joint is tooled smooth and checked before we leave.

How to prepare

  • Keep children and pets away from the work area
  • Let us know if you’ve seen damp or leaks
  • Where the joints are inside, avoid wetting them before we arrive

Ask for a quote

Quotes start with a quick conversation. Describe the problem, the location and the size of the job. Whenever you’re ready, call 0345 464 0079 or send us an email.

Ask for a quote

Advice

Signs you need window mastic in Aldermaston Wharf

On timber frames, paint and putty build up around the joint. Mastic painted over many times cracks with the paint, and timber moves with moisture as well as temperature.

Most people get in touch when they notice one of these:

  • Damp patches on the reveal after heavy rain
  • Untidy mastic left by window fitters
  • Whistling draughts around closed windows
  • Gaps where the sill meets the wall

Homes close to Church of St John the Baptist include some older properties, and replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint.

What to look for in a quote

  • Who turns up on the day
  • Whether the sealant suits the joint
  • Is VAT in the price?
  • What insurance they hold

Choosing a sealant specialist

What sealant work cannot fix

We will always be straight with you, so here’s what sealant cannot fix:

  • Broken hinges, locks or handles
  • Draughts through the window seals rather than the frame
  • Damp problems in the wall away from the window

If in doubt, ring 0345 464 0079 or email us and we’ll say what we think.

Joints and surfaces we work on

  • Patio & French doors
  • Timber windows & doors
  • Composite doors
  • uPVC windows
  • Aluminium frames
  • Window sills

What affects the cost of window mastic

Every job gets its own quote. This is what makes a difference:

  • Any working-time requirements on site
  • How easy the joints are to reach
  • The old material and how stubborn it is
  • The product the joint needs

A few things move the cost up or down: the old material and how easily it comes out, any mould to treat, and whether the work is at height. Your quote takes all of that into account.

Helping us quote

What to tell us when you ask for a quote:

  • The rough size of the job
  • Where the property is
  • Access, such as stairs, a lift or height
  • If someone has resealed it before

Asking for a quote is easy: let us know what needs doing and where and its rough size. Photos by email help us understand the job, and we’ll come back to you with a quote.

Aldermaston Wharf questions

Is Aldermaston Wharf within the area you cover?

Yes, we do. Our work covers London and the South East, from towns to the smallest places. The journey is planned ahead, so it helps to know about access.

I let a flat near Aldermaston station. Can you help?

Yes, rental work is part of what we do. You can call 0345 464 0079 or drop us an email with the address and a few details, and we’ll give you a fixed price before work begins.

Will the old sealant be removed?

Yes. We cut out all the old sealant and clean the joint.

Should I try DIY first?

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.

What should I tell you?

A short description and the location, with pictures by email if possible. If we need more, we will ask.

Do you hold any approvals?

Yes. We hold ARBOMaster approved applicator status, and we’re fully insured.

How much does window mastic cost in Aldermaston Wharf?

Size, access and the old material all affect the cost. Ask us for a quote and we will talk you through it.

Are you fully insured?

Yes, we’re fully insured.

20+ yearsMastic and sealant specialists
ARBOMaster approvedApproved applicator for Arbo sealants
Fully insuredDomestic, commercial and hotels
One-year guaranteeOn every job