Reading · England

Window & door mastic in Shinfield, Reading

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

  • Draughty joints inside around the window
  • Sealant in the wrong colour for the frame
  • Draughts coming in around windows and doors

Trusted window mastic in Shinfield

Do you need window mastic in Shinfield?

Sun, frost and rain wear sealant out. Sunlight dries the surface out, and over the years it loses its give, cracks and comes away.

Any of these means the joints need attention:

  • Rushed sealant from a window installation
  • Cracked or shrunken mastic around the frame
  • Cracked internal joints between frame and plaster
  • Damp patches on the reveal after heavy rain

For site and facilities teams at buildings such as Shinfield Infant and Nursery School, the mastic around its windows and doors needs looking after like any other building’s.

What to look for in a quote

  • Whether VAT is included
  • Which sealant they’ll use, and why
  • What happens if they find a problem under the old sealant
  • What insurance they hold

10 questions to ask before you book

About our window mastic in Shinfield

From a single sill to a whole house of windows, the work is priced before anything is done. Just phone 0345 464 0079 or email us and tell us how many frames there are and how they’re reached for window mastic in Shinfield. Common call-outs are for mastic that’s falling out in pieces and cracked sealant at the sill ends, on patio & French doors, uPVC windows and window sills.

Homes around Shinfield range from older properties to newer houses, and their windows range just as widely. Each frame material needs the right sealant against the right wall.

You get a 12-month guarantee, the same in Shinfield as everywhere else we work.

Mr Mastic applicator sealing the top of a white uPVC door frame on a red-brick house
Place
Shinfield (RG2)
Region
Reading
Cover
A year, on every job
Quote
A clear quote up front
Telephone
0345 464 0079
Updated
26 October 2026

What happens on the day

When we get to you, we check the joints match what you told us. If anything is different, we explain it before carrying on. After that, the work takes anything from an hour or two to a full day, depending on how many frames there are. For a job in Shinfield, we agree the time, the access and parking before the day. Outdoor jobs depend on a dry day, since sealant needs a dry surface.

  1. First, we confirm safe access to each frame.
  2. All the failed sealant is cut away.
  3. Frame and wall are cleaned and must be dry before sealing.
  4. Backing rod fills deep voids and the sealant goes in on top.
  5. The joint is shaped to shed water and the area tidied.

Preparing for the visit

  • Mention any tricky access
  • On commercial sites, let us know about site rules
  • Tell us if parking is tricky

How to get a quote

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

Get a quick quote

Related advice

Common questions in Shinfield

Can you help a landlord with a rental near Reading Green Park station?

Yes, landlords and agents are among the people we work for. 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.

Do you cover Shinfield for window mastic?

Yes, Shinfield is within the area we cover. Our work covers London and the South East. Just call 0345 464 0079 or send us an email with a few details of the job, and we’ll send you a clear quote.

Do you hold any approvals?

Yes. We are approved under the ARBOMaster scheme, the approved applicator scheme for Arbo sealants.

Do you work on first-floor windows?

Yes, where it’s safe. For high or awkward windows, we will tell you what access is needed.

Can new window sealant be painted?

It depends on the sealant. Some hybrid sealants can be painted; silicone cannot. Tell us if you’re decorating and we will choose accordingly.

What do you put in the joint?

The product depends on the job: sanitary silicone where it gets wet, and sealants suited to movement or weather elsewhere. We use products from Arbo and Everbuild.

When is the sealant fully cured?

It depends on the product. Before we leave, we’ll tell you the cure time.

Can I do it myself?

That depends on the joint. High-level, external movement and fire-rated joints are professional jobs, while a short indoor joint may be within reach.

Landlords, agents and businesses in Shinfield

Mouldy or split sealant often shows up at the end of a tenancy, and it’s quick to put right between tenancies. We can quote for more than one property at once.

Landlords and agents in Shinfield can book us as well as homeowners. Resealing between tenancies is a simple way to keep a property in good order before the next move-in.

What happens if it’s left?

Once mastic fails, rain can get between the frame and the wall. Over time that can mean damp patches, damaged plaster and rotting timber. Resealing now is a small job by comparison. In an older home around Shinfield, damp from a failed joint can get into timber and plaster, which is far harder to put right than the sealant itself.

Doing several joints on one visit is generally more efficient than separate visits, so it’s worth mentioning everything you’d like done. We’ll give you a clear quote for the lot.

Why choose Mr Mastic in Shinfield

  • Neat joints and a tidy finish
  • Anti-fungal sanitary silicone in wet areas
  • ARBOMaster approved applicator
  • A choice of colours where the product allows

Take a look at how sealant jobs are priced and our reviews.

Surface by surface

Aluminium frames

Large aluminium doors have long joints down each side and across the head, and the bottom joint sees the most water. We prepare and reseal every joint, backing the deep ones.

Composite doors

A composite door normally sits in a plastic outer frame, so its perimeter joint is sealed much like a window. The bead is colour-matched to the frame.

How we quote for window mastic

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

  • How many areas need sealing
  • The amount of work
  • Working hours on commercial sites
  • The product the joint needs

Instead of a standard rate, we look at what your job involves: 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

Before you ask for a quote, have a think about:

  • How we’d reach the joints
  • The type of property
  • The rough size of the job
  • Where the property is

For a quick quote, get us on the phone, or email us if that is easier. Describe what needs sealing and we will explain what’s involved.

When it isn’t the sealant

Before booking, it’s worth knowing the limits too:

  • Rotten timber, which needs a joiner first
  • Faulty window hardware
  • Worn gaskets, brush seals or a door that has dropped

Not sure which it is? You can phone 0345 464 0079 or send us an email and we’ll tell you honestly.

Surfaces we seal

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

Windows and doors in Shinfield

London and the South East are among the drier parts of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind. With historic houses such as Stratfield Saye House (about 4.5 miles south-west) nearby, there’s older building stock in the area around Shinfield as well as newer homes. In older buildings, older timber frames in brick or stone need a different approach from a modern uPVC window.

For an older house near a landmark such as Church of St Mary the Virgin, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint. If you let a flat or house near Reading Green Park station, renewing tired window mastic between tenants heads off draught and damp complaints.

Shinfield is about 3 miles south of Reading, in Reading. Anywhere in RG2, we can carry out window mastic at your property. Our area takes in 34 places across Reading, from the larger towns to small villages.

All of RG2 is within our area for window mastic. If you need window mastic at a property on Teal Grove, Songbird Close and Skylark Way or a nearby road, we can help. Other places close to Shinfield include Ryeish Green (1 mile south-west), Whitley Wood (1 mile north-west), Three Mile Cross (1 mile west), Great Lea Common (1 mile west) and Arborfield (2 miles east). We also work in nearby towns such as Caversham (5 miles north), Norcot (5 miles north-west), West Reading (4 miles north-west), Tilehurst Within (5 miles north-west), Arborfield Garrison (3 miles south-east) and Caversham Heights (5 miles north). Shinfield is one of the larger places we cover in Reading.

What’s near Shinfield

We work in homes and buildings around Pearman's Copse, Ryeish Green School and Oakbank. The nearest railway station is Reading Green Park station, about 2.6 miles north-west. Other landmarks nearby include Berkshire Library & Museum of Freemasonry (2.9 miles north-east) and Royal Berkshire Hospital (3.1 miles north). Not far away are Longwater and Sonning Hill.

Map of Shinfield © OpenStreetMap contributors
20+ yearsMastic and sealant specialists
ARBOMaster approvedApproved applicator for Arbo sealants
Fully insuredDomestic, commercial and hotels
One-year guaranteeOn every job