Slough · England

Window & door mastic in Rose Hill, Slough

Mastic around window and door frames, sills and patio doors in Rose Hill, with a 12-month guarantee on every job. Ask us for a quote.

  • Cracked internal joints between frame and plaster
  • Old mastic that has gone black or come away
  • Leaking joints at the ends of sills

Window mastic for Rose Hill homes and businesses

Window mastic for homes and businesses in Rose Hill

Frames and walls do not move together. Heat and cold make frames grow and shrink against brick or render that hardly moves. So the sealant has to stretch and recover, which is why we use a low-modulus product. If you are dealing with water coming in at the bottom corners of a door and cracked sealant at the sill ends, we can put it right, whatever the surface.

Outdoor sealant needs dry, clean surfaces, so work on frames around Rose Hill is planned for dry weather. Let us know about access to all the frames, upstairs ones included.

A 12-month guarantee comes as standard, so you’re covered after we have gone.

Place
Rose Hill (SL1)
Region
Slough
Guarantee
A year, on every job
Quotes
A clear quote up front
Call
0345 464 0079
Page updated
26 October 2026
Applicator reaching up to seal an external door frame on a sunny day

Keeping the joints in good condition

So the new joints stay in good condition:

  • Walk round the house once a year and look at the joints
  • Repaint timber before it’s bare
  • Clean frames with a soft cloth and soapy water
  • Clear any debris from frame drain holes

Keep the new mastic undisturbed while it cures, following the cure time we give you. Don’t point a pressure washer at the joints.

Water trapped behind a failed joint can start rot in timber frames and sills. Rotten timber needs a joiner, not a sealant, so early resealing is worth it.

Honest limits

It helps to know what we can’t do:

  • A failed sealed unit that has misted up
  • A sash or casement that won’t close properly
  • A frame that has rotted at the joint

If you are not sure, just call 0345 464 0079 or send us an email and we will give you a straight answer.

What we seal

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

Why deal with it now?

Working on frames from a ladder with a sealant gun isn’t easy, especially on upper floors. A professional job is cut out properly, backed where needed and finished neatly, using a product chosen for the frame and wall. Around Rose Hill, older homes often have timber in their floors and frames, where water from a failed joint can cause rot if it’s left.

No two jobs are quite the same, so we quote each one individually. The number of joints, how easy they are to reach and the sealant needed all make a difference.

What you get with us

  • Every job guaranteed for a year
  • Homes, businesses and hotels
  • Colour agreed with you before work begins
  • Sealant colour chosen to suit

See what affects the cost or customer reviews.

What happens on the day

The work is kept neat and contained to the joints we’re treating, so you can carry on as normal. Expect the work to take a few hours for a few frames, or a day or more for a whole house. Somewhere like Rose Hill needs a little journey planning: let us know about lanes, gates and parking. Everything for the job comes with us, so a second trip is avoided where possible.

  1. Each frame is looked over and we agree which ones need resealing.
  2. The old mastic is cut out and scraped back to clean surfaces.
  3. Deep gaps get closed-cell backing rod to set the depth.
  4. The new sealant goes on in white, brown, anthracite grey, black or clear to suit.
  5. We tool each bead neatly and check every joint is closed.

Before we arrive

  • Let us know about earlier repairs to the joints
  • Try not to wet indoor joints just before the visit
  • Move anything stored near the joints

Getting a quote

For a quote, phone 0345 464 0079 or email us and tell us where the job is and what the problem looks like. You will have a clear quote before any work starts.

Get a price

Advice

Frames and glazing around Rose Hill

With historic houses such as Cliveden (about 1 mile north-west) nearby, there’s older building stock in the area around Rose Hill as well as newer homes. In older buildings, older frames set in brick or stone need a sealant that suits them, and sometimes that’s traditional sand mastic. 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.

In the older streets around Church of St Mary, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint. Schools such as St Peter's Church of England Primary School are buildings too, and larger buildings have plenty of frames, and the mastic around each one ages.

Rose Hill is about 3 miles north-east of Maidenhead, in Slough. Whether you are in the middle of Rose Hill or further out, we cover window mastic for every kind of property. 31 places in Slough are on our list, large and small. We also work in Reading, about 15 miles from Rose Hill.

Work in SL1 works the same way as everywhere else we cover. Whether your property is on Rose Hill and Taplow Common Road or a nearby road, our applicators can take on the job. Neighbouring places we cover for window mastic include Hitchambury (1 mile south), Taplow (1 mile south-west), Burnham (1 mile south-east), Littleworth Corner (1 mile north-east) and Hedsor (2 miles north). Further out, we also cover Slough (4 miles south-east), Cippenham (3 miles south-east), Chalvey (4 miles south-east), Langley (6 miles south-east), Upton (5 miles south-east) and Datchet (6 miles south-east).

Local landmarks in Rose Hill

In Rose Hill, that means homes and buildings near Cocksherd Wood, Burnham Grammar School and The Feathers Public House and the streets around them. The nearest railway station is Taplow station, roughly 1.7 miles south of the centre. Nearby you will also find St Mark's Hospital (3.5 miles south-west) and The Reitlinger Bequest Museum (2.2 miles south-west). Not far away are Taplow Lake and Littleworth Common.

Map of Rose Hill © OpenStreetMap contributors

Rose Hill questions

Do you cover Rose Hill for window mastic?

Yes. We work across London and the South East, and Rose Hill is part of that. You can call 0345 464 0079 or drop us an email and tell us what needs doing.

Can you help a landlord with a rental near Taplow station?

Yes. We work for landlords and letting agents as well as homeowners. Just phone 0345 464 0079 or send us an email with the address and what needs doing, and we will send you a clear quote.

What do you need from me for a quote?

The location, the problem and the rough size of the job. Photos by email help too.

Can I do it myself?

For a simple, easy-to-reach joint, a careful DIYer can do a reasonable job. Most DIY failures come from sealing over old material, wet joints or too much sealant.

Will the old sealant be removed?

Always. Sealing over the old bead is the commonest cause of early failure, and it’s something we never do.

Do you have insurance?

Yes. Full insurance covers our work, and we can confirm the details when we quote.

Can new sealant go over the old?

No, because it fails. The old sealant always comes out first, so the new sealant bonds properly.

Do you do commercial work?

Yes. Commercial and hotel work is a large part of what we do. We can talk about working times when we quote.

DIY versus a professional finish

A DIY attempt doesn’t rule out a professional job. We cut it out and start again.

Some jobs are best left to a professional: high-level joints, fire-rated gaps, external movement joints and big jobs need the right product, the right access and the right method.

When to call us in Rose Hill

Older frames were often sealed with products that set hard. Once it has hardened, the frame’s movement tears it from the wall, leaving a hairline gap down one side.

Look out for any of the following:

  • Draughts coming in around windows and doors
  • Cracked internal joints between frame and plaster
  • Leaking joints at the ends of sills
  • Mastic that is falling out in pieces

For landlords with property near Taplow station, cracked frame mastic tends to show up as a draught or damp complaint, so it’s worth checking between lets.

Comparing quotes

  • Which colour the sealant will be
  • Whether they’re fully insured
  • What the quote includes, VAT included or not
  • What happens if the job turns out different

How to choose a mastic man

How we quote for window mastic

There’s no set price list, because no two jobs are the same. What we look at:

  • How easy the joints are to reach
  • Whether old sealant or filler has to be cut out
  • When we can work, for business premises
  • The number and length of the joints

Instead of a standard rate, we price the job in front of us: the amount of work, the old material and the access. You will know the price before we begin.

What to tell us for a quote

Photos help, but a description is a good start. Try to tell us:

  • Where the property is
  • How many joints, rooms or windows are involved
  • Whether it’s a home or a business
  • Pictures of the joints, sent by email

If you’re in Rose Hill and need window mastic, phone 0345 464 0079 or send us an email. A short description of the job and where it is helps us quote, and you’ll get a clear quote before any work starts.

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