Surrey · England

Irons Bottom Window Mastic

Window mastic across Irons Bottom and nearby, with every bit of old sealant taken out first.

  • Draughty joints inside around the window
  • Mastic that has split away from the wall
  • Damp patches on the reveal after heavy rain

Trusted window mastic in Irons Bottom

Frames and glazing around Irons Bottom

London and the South East are among the drier parts of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.

If you let a flat or house near Salfords station, renewing tired window mastic between tenants heads off draught and damp complaints. For site and facilities teams at buildings such as Burys Court School, its window and door frames need their mastic kept sound, just like a home’s.

Irons Bottom is about 2 miles south of Reigate, in Surrey. Wherever you are in the RH2 postcode area, our applicators can take on window mastic. Our Surrey coverage runs to 395 places, and Irons Bottom is one of them. There’s also a page for Crawley, about 6 miles away.

Work in RH2 works the same way as everywhere else we cover. We also cover Sidlow (1 mile north-east), South Park (2 miles north), Leigh (2 miles west), Dawesgreen (2 miles west) and Reigate (2 miles north). We also work in nearby towns such as Epsom (9 miles north), Horley (3 miles south-east), Redhill (3 miles north-east), Ewell (11 miles north), Walton-on-Thames (15 miles north-west) and Caterham (8 miles north-east).

Local landmarks in Irons Bottom

We work in homes and buildings around Earlswood Common and Reigate School and the streets around them. For rail, the closest station is Salfords station, about 2.1 miles east. Other landmarks nearby include Reigate Castle (2.5 miles north) and Reigate Priory Museum (2.2 miles north). Green spaces nearby include Mercers Lake and Colley Hill.

Map of Irons Bottom © OpenStreetMap contributors

Window mastic for homes and businesses in Irons Bottom

Some gaps around frames are far deeper than they look. Filling it with sealant alone leaves a joint that can’t move properly, so we fit backing rod to set the right depth. That way the new bead bonds to the frame and the wall only. We work on composite doors, aluminium frames and patio & French doors, and common reasons people get in touch are cracked or shrunken mastic around the frame and rushed sealant from a window installation.

Around Irons Bottom, many homes face open ground, so their windows and doors take the full weather. That exposure dries out and cracks the mastic around frames and sills faster.

All our work is covered by our one-year guarantee, wherever you are in Surrey.

Location
Irons Bottom (RH2)
Region
Surrey
Cover
One year on every job
Price
Quoted before any work starts
Telephone
0345 464 0079
Last updated
26 October 2026
Outdoor mastic being applied where a white frame meets red brickwork, below the fascia and gutter

When it is not the sealant

Sealant is not the answer to every problem, and we’ll tell you before we start. Sealant will not put right:

  • A failed sealed unit that has misted up
  • Penetrating damp from a failed cavity tray or render
  • Soft or decayed wood in the frame

If you are not sure, just ring 0345 464 0079 or send us an email and we’ll give you a straight answer before booking.

Where we work in Irons Bottom

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

Why act early in Irons Bottom

Not every sealant suits a window. Interior caulk and bathroom silicone are not made for exterior frame joints. An exterior, low-modulus sealant stays flexible in sun and frost. In a small place like Irons Bottom, homes can be exposed to wind and rain, which finds any gap, and damp in older walls is slow to dry out.

What it costs depends on the size of the job, how hard the old material is to remove and access to the work. You’ll have a clear quote before any work starts.

Why us?

  • Quality sealants from Arbo and Everbuild
  • Colour picked to suit the job
  • We are fully insured
  • A choice of colours where the product allows

Read our cost guide or our reviews.

What we do, step by step

All our tools and materials come with us in the van. After a quick look at the joints together, we protect the area and start. Most jobs take anything from an hour or two to a full day, depending on how many frames there are. Somewhere as small as Irons Bottom, access is often the only tricky part. If the job is outside, mention outbuildings, exposed walls and how to reach them.

  1. First we look at every frame and agree the list.
  2. Next the failed sealant is cut away and the joint cleaned.
  3. We fit backing rod in deep gaps so the sealant is the right depth.
  4. New exterior sealant goes on in a matching colour and is tooled smooth.
  5. Every joint is checked before we leave.

Before we arrive

  • Tell us about access, such as stairs, a lift or high-level joints
  • Mention any parking rules near the property
  • Move anything stored near the joints

Ask for a quote

There’s no standard price list, because every job is different. Instead, your job gets its own clear quote. To arrange one, call 0345 464 0079 or email us.

Ask for a quote

Related advice

Surface by surface

Aluminium frames

Aluminium moves with heat, and the frames are often slimmer than uPVC. A tidy bead in anthracite grey, black or a matching colour suits the frame.

Timber windows & doors

Timber moves with moisture as well as heat, so a flexible sealant is essential. We seal onto sound, dry paintwork or timber.

Signs you need window mastic in Irons Bottom

Every frame moves through the day. Sun on a frame makes it expand, and it contracts again overnight, while the masonry beside it stays put. A sealant that can’t keep up eventually tears.

It’s worth asking for a quote if you see:

  • Damp patches on the reveal after heavy rain
  • Gaps left after new windows were fitted
  • Black, perished sealant on frames
  • A bead that doesn’t match the frame

For an older house near a landmark such as Emmanuel Church, frames set in older brick or stone need a sealant that suits the wall as well as the frame.

What your quote should include

  • How the colour is chosen
  • When the joint can take water or movement
  • What guarantee comes with the work
  • Who turns up on the day

Our hiring checklist

Keeping the joints in good condition

Good habits help new joints last longer. A few tips:

  • Keep solvents and bleach off the sealant
  • Don’t paint over the silicone
  • Keep jet washers away from the mastic
  • Keep drainage slots and sill grooves clear

Check the drainage slots in the frames aren’t blocked, so water can run away instead of sitting against the joint.

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.

Irons Bottom: your questions answered

Do you work for landlords with property near Salfords station?

Yes. We work for letting agents and landlords as well as householders, and several properties can go on one quote. Just phone 0345 464 0079 or send us an email with the address and what needs doing, and we’ll give you a clear price.

Do you cover smaller places like Irons Bottom?

Yes, Irons Bottom is covered. Our work covers London and the South East, and smaller places are part of that. The journey is planned ahead, so it helps to know about access.

Can new sealant go over the old?

No, and we never do. It can look neat for a few weeks, but the new bead soon lifts. The old sealant has to come out completely.

Does someone need to be in?

We need access to the joints, so we’ll agree that with you when we book. Indoors, that normally means someone at home.

Is it messy?

Tidy work is part of the job. We protect what’s around the joints, and we clear up when we’re done.

Can you do upstairs windows?

Yes, where they can be reached safely. Let us know about access when you ask for a quote and we will plan for it.

Do you work for hotels and businesses?

Yes. We work in offices, washrooms, hotels and other commercial premises. Working times can be discussed when we quote.

Is there any odour?

There can be a smell while the sealant cures, but it fades. Opening a window helps.

Should I try it myself first?

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.

Too much sealant is as bad as too little. A thick, smeared bead looks untidy and doesn’t move well, and getting the depth right matters as much as the look.

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