Oxfordshire · England

Duns Tew New Build Mastic

New-build sealant joints in Duns Tew need attention? We cut out the old, prepare the joints and apply the right sealant, with a 12-month guarantee.

  • Plot mastic for developers ahead of handover
  • Beads laid onto grit and dust from the build
  • Cracks appearing as a new home settles

New build mastic in Duns Tew

Landlords, agents and businesses in Duns Tew

Housing providers, facilities teams and property managers book us too in Duns Tew and across Oxfordshire. Several sites can go on one quote, and we’re fully insured for the work.

We regularly work with letting and managing agents. Send the address, what’s needed and the access arrangements and we’ll quote.

New build mastic in Duns Tew

Dust is the enemy of new-build sealant. Each joint is cleaned of dust and primed where the product calls for it, so the new bead bonds properly. Typical jobs include smeared, uneven beads picked up at snagging and internal frame sealant that has split, across plot handovers, skirting & floors and show homes.

Older homes in small places like Duns Tew often have timber floors that move with the seasons, so skirting and threshold joints need a flexible sealant rather than a rigid filler.

We stand behind the work with a 12-month guarantee.

Location
Duns Tew (OX25)
Region
Oxfordshire
Guarantee
A year, on every job
Quote
A clear quote up front
Phone
0345 464 0079
Page updated
26 October 2026
Silicone being applied where a shower enclosure meets beige wall tiles

Signs you need new build mastic in Duns Tew

Later trades and the final clean can damage fresh sealant. A bead disturbed before it has cured may never seal properly and it shows once the home is in use.

Look out for these signs:

  • New-build shower sealant that has already split
  • Internal frame sealant that has split
  • Untidy sealant flagged on a snagging list
  • Cracks appearing as a new home settles

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

Before you book anyone

  • What product goes in the joint
  • How the colour is chosen
  • Whether they seal over old material or remove it
  • Whether VAT is included

Choosing a sealant specialist

How we quote for new build mastic

Some jobs are bigger than they look, and some smaller. What affects the quote:

  • The number of rooms or windows
  • Mould in or behind the old joints
  • The amount of work
  • Working hours on commercial sites

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.

Helping us quote

What to tell us when you ask for a quote:

  • What’s wrong with the joints now
  • How we’d reach the joints
  • A few photos by email, if you can
  • Whether it’s a home or a business

If you are in Duns Tew and need new build mastic, call 0345 464 0079 or send us an email. Tell us what the problem is and where, and we’ll agree the price before any work begins.

New homes and floors in Duns Tew

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.

In and around Duns Tew, as anywhere, good new build mastic starts with a clean, dry, properly prepared joint.

Duns Tew is about 8 miles south of Banbury, in Oxfordshire. Duns Tew gets the same service as everywhere we cover: old sealant removed completely, careful preparation and a one-year guarantee. 443 places in Oxfordshire are on our list, large and small. Our Oxford page covers work nearby, about 15 miles away.

Our applicators cover all of OX25 for new build mastic. Local streets include Main Street, Glebe Court and Middle Barton Road, and we cover them all. We also cover Dane Hill (1 mile north-east), North Aston (1 mile east), Middle Aston (1 mile south-east), Steeple Aston (2 miles south-east) and Nether Worton (2 miles west). Further out, we also cover Oxford (15 miles south), Banbury (8 miles north), Bicester (8 miles south-east), Witney (13 miles south-west), Kidlington (9 miles south) and Headington Quarry (14 miles south-east).

Around Duns Tew

Typical jobs here are in homes near The White Horse Inn, among other places. Duns Tew’s nearest station is Heyford station, roughly 2.8 miles south-east of the centre. Well-known places in the area include Old Forge Museum (Great Tew) (3.9 miles west) and Deddington Castle (2.1 miles north-east).

Map of Duns Tew © OpenStreetMap contributors

Why it’s worth doing now in Duns Tew

Running a new bead over the builder’s sealant might look tidy for a few weeks, but it won’t bond to the old layer. A lasting seal starts with removing the old one completely. In a small place like Duns Tew, homes can be exposed to wind and rain, which finds any gap, and damp in older walls is slow to dry out.

Combining jobs into one visit is normally more efficient than separate visits, so tell us about everything that needs sealing. You’ll get one clear quote for the whole job.

Why us?

  • We agree the colour with you first
  • Fully insured
  • Colour picked to suit the job
  • An ARBOMaster approved applicator

Read how sealant jobs are priced and our reviews.

How to look after the new joints

A little care helps the new joints last. Our advice:

  • Don’t wait for the house to settle if water is getting through
  • Open a window or run the fan after bathing
  • Clean sealant with mild detergent, not abrasives
  • Avoid running a DIY bead over the old one

Follow the cure time we give you before the area gets wet. Silicone is generally left for about a day.

The sooner you deal with untidy or cracking sealant, the less there is to put right. Small faults turn into leaks if left in a busy bathroom.

Can I do it myself?

If you do try it yourself, take your time over the preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it fails, we can still redo it.

If you’ve already had a go yourself, that’s fine. We remove it and do the joint properly, so just mention it when you contact us.

Your questions about new build mastic in Duns Tew

Is Duns Tew in your area for new build mastic?

Yes, Duns Tew is within the area we cover. We work across London and the South East. You can phone 0345 464 0079 or send us an email and tell us what needs doing, and we’ll send you a clear quote.

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

Yes, rental work is part of what we do. Just ring 0345 464 0079 or email us and tell us about the property, and we’ll give you a clear quote.

Is the work guaranteed?

Yes. Every job comes with a 12-month guarantee.

When is the sealant fully cured?

Most sealants are touch-dry well before they’re fully cured. We’ll tell you how long to leave the joint before we leave.

Is there any odour?

Possibly a little. Any smell clears as the sealant cures, and ventilation helps.

Do you remove the old sealant?

Yes. All of the old material is cut out and the joint cleaned before applying anything new.

Does someone need to be in?

For indoor joints, yes, someone needs to let us in. Once we’ve agreed the job, you don’t need to watch us work.

Do you have insurance?

Yes. We are fully insured for domestic and commercial work.

What we do, step by step

When we get to you, we compare the joints with what we discussed. If we find something unexpected, we talk it through with you first. After that, the work takes a few hours in a single home. In a small place like Duns Tew, access is normally the main thing to plan. If the job is outside, mention outbuildings, exposed walls and how to reach them.

  1. We start by going through the snagging items or plot schedule with you.
  2. The failed sealant is removed completely, with no layer left behind.
  3. Joints are vacuumed and cleaned of building dust.
  4. We prime where needed and apply a sealant suited to each joint.
  5. Each bead is tooled and the cure times explained.

How to prepare

  • On commercial sites, let us know about site rules
  • Mention any leaks or damp you’ve noticed
  • Try not to wet indoor joints just before the visit

Get a quote

Quotes start with a quick conversation. Tell us what’s wrong, where it is and how much there is, and we’ll talk you through what we’d do. When it suits you, phone 0345 464 0079 or email us.

Get a price

Read more

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