Oxfordshire · England

New Build Mastic in Great Western Park

Problem with your new-build sealant joints in Great Western Park? We cut out the old, prepare the joints and apply the right sealant, and the work is guaranteed for a year.

  • Second-fix sealing on new plots
  • Gaps opening as the house dries out and settles
  • Cracked sealant around new window and door frames

Need new build mastic in Great Western Park?

Keeping the joints in good condition

Simple care keeps the joints in good condition. Our advice:

  • Put sealant faults on your snagging list early
  • Wipe joints with warm soapy water
  • Avoid running a DIY bead over the old one
  • Get a leaking seal dealt with right away

Don’t stand on the bath edge or the lip of the tray. Report any movement in a bath or tray.

A failed seal in a new home lets water into joists, plasterboard and ceilings. Early resealing keeps the job small and protects the rest of the house.

About our new build mastic in Great Western Park

Some new-home owners let the house settle before resealing. For small cosmetic gaps, that’s reasonable, but a failed shower or bath seal shouldn’t wait. We work on bathrooms & en suites, skirting & floors and windows & doors, and common reasons people get in touch are internal frame sealant that has split and shower seals failing in the first year or two.

In smaller places like Great Western Park, new homes tend to come as small developments or single plots. Each still needs its sealant and floor joints finished properly from day one.

The work is guaranteed for twelve months. If there’s a problem with our work within the year, let us know and we will sort it.

Silicone being applied where a shower enclosure meets beige wall tiles
Location
Great Western Park (OX11)
Wider area
Oxfordshire
Guarantee
A year, on every job
Price
A clear price before any work starts
Call
0345 464 0079
Updated
26 October 2026

How it works

There’s no need to move everything out, just the space around the work. Everything nearby is protected, and the work takes a few hours for most snagging lists, longer for a run of plots for a typical job. For a job in Great Western Park, we agree the time, the access and parking before the day. If the work is outside, the weather plays a part, as sealant needs a dry surface.

  1. First, the list of joints is agreed from your snagging sheet or plot schedule.
  2. The failed sealant is removed completely down to clean surfaces.
  3. Joints are vacuumed and cleaned of building dust.
  4. We prime where needed and apply a sealant suited to each joint.
  5. We tool every joint neatly and tell you when each area can be used.

Getting ready for the visit

  • Let us know about parking restrictions
  • Let us know about stairs, lifts or work at height
  • Move anything stored near the joints

How to get a quote

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

Get a quick quote

Advice

What we cannot put right

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

  • Broken tiles or a split tray
  • Cracking that points to a structural problem
  • Leaking fittings rather than failed sealant

Not sure which it is? You can call 0345 464 0079 or drop us an email and we will tell you honestly before you book.

What we seal

  • Show homes
  • Bathrooms & en suites
  • Plot handovers
  • Skirting & floors
  • Kitchens
  • Windows & doors

What the job involves on each surface

Skirting and floors

Gaps under skirting are one of the most common new-build snags. We seal it with a flexible sealant that copes with the movement.

Show homes

Tired or marked sealant in a show home can be renewed. The old bead comes out and a clean new one goes in.

Common problems we fix in Great Western Park

The first winter with the heating on dries a new home quickly. Skirting, frames and worktops pull away slightly.

Most people get in touch when they notice something like this:

  • Shower seals failing in the first year or two
  • Messy sealant that spoils new finishes
  • Frame joints opening as the plaster dries
  • Plot mastic for developers ahead of handover

For new homes near Didcot Parkway station, it’s worth checking the sealant early, while snags are still fresh.

What your quote should include

  • Whether the sealant suits the joint
  • Are they insured?
  • What the cure time is
  • What happens if the job turns out different

How to choose a mastic man

Your questions about new build mastic in Great Western Park

Is Great Western Park in your area for new build mastic?

Yes, Great Western Park is within the area we cover. We work across London and the South East. You can ring 0345 464 0079 or send us an email and let us know what needs doing, and we’ll give you a clear quote.

Is Great Western Park within the area you cover?

Yes, Great Western Park is covered. We work across London and the South East, from towns to the smallest places. The journey is planned ahead, so it helps to know about access.

Do I have to be there?

It depends on the job. Inside work needs someone to give us access, and for outside work we’ll agree access with you when we book.

Will there be a smell?

It depends on the product. Some products have a noticeable smell, others very little, and any smell fades as they cure.

Can you work on commercial sites?

Yes. We have worked for hotels, offices and other businesses.

What do you put in the joint?

It depends on the joint: anti-fungal sanitary silicone in wet areas, and other sealants where joints move or face the weather. We use products from Arbo and Everbuild.

How much does new build mastic cost in Great Western Park?

Every job is different, so each one gets its own quote. For a quick quote, call 0345 464 0079 or email us with a short description of the job.

Should I go to my builder first?

If you’re still within the builder’s snagging or warranty period, report it to them first. If it isn’t sorted, or keeps failing, get in touch with us.

Joints and finishes in Great Western Park homes

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.

In and around Great Western Park, as anywhere, good new build mastic starts with a clean, dry, properly prepared joint.

Great Western Park is about 1 mile west of Didcot, in Oxfordshire. For new build mastic in and around Great Western Park, it’s easy to get a quote: please ring 0345 464 0079 or email us. We are based in Crawley and cover Oxfordshire, Great Western Park included. Across Oxfordshire, we cover 443 places, Great Western Park among them. There’s also a page for Oxford, about 10 miles away.

Here we cover the OX11 postcode area for new build mastic. Streets in the area include Holly Lane, Maple Road and Slade Road. We also cover the places around Great Western Park: Didcot (1 mile east), Milton (2 miles north-west), Sutton Courtenay (2 miles north), Appleford-on-Thames (3 miles north-east) and Culham (3 miles north). Further out, we also cover Oxford (10 miles north), Abingdon-on-Thames (5 miles north), Wantage (7 miles west), Grove (7 miles west), Faringdon (14 miles west) and Kidlington (15 miles north).

Around Great Western Park

Typical jobs here are in homes near The Wheatsheaf pub, UTC Oxfordshire and UTC Oxfordshire and the streets around them. The closest station to Great Western Park is Didcot Parkway station, roughly 1.3 miles east of the centre. Other landmarks nearby include Atlas Computer Laboratory (2.8 miles south-west) and Abingdon Community Hospital (4.7 miles north). The countryside around Great Western Park includes Churn Hill and Mowbray Fields.

Map of Great Western Park © OpenStreetMap contributors

For landlords and businesses

Hotels need rooms back in use, so we plan the work room by room. We’ve worked in hotels as well as homes and businesses.

Housing providers, facilities teams and property managers book us too in Great Western Park and across Oxfordshire. We can quote a run of properties together.

What affects the cost of new build mastic

For a quick quote, just ask. What matters most is:

  • The old material and how stubborn it is
  • How many rooms, windows or areas are involved
  • When we can work, for business premises
  • The type of sealant required

Some things make a job bigger or smaller: the old material and how easily it comes out, whether mould needs treating, and whether the work is at height. Your quote takes all of that into account.

What we need to know

When you call or email, these details help:

  • Any access issues, like height or stairs
  • Roughly how big the job is
  • Where the job is, and your postcode
  • Whether it has been sealed before

We don’t publish a price list. Instead, your job gets its own clear quote. To get started, call 0345 464 0079 or send us an email.

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