Oxfordshire · England

Sand Mastic in Christmas Common

Traditional burnt sand mastic around sash and case windows and doors in stone and brick in Christmas Common, with a one-year guarantee on every job. Call for a quick quote.

  • Failed mastic on an exposed elevation
  • Cracked mastic round a front door frame
  • Draughty sash windows at the surround

Book sand mastic in Christmas Common

Common questions in Christmas Common

Will you come out to Christmas Common?

Yes, we do. 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.

What guarantee comes with sand mastic in Christmas Common?

Every job comes with our one-year guarantee, wherever it is. We are also fully insured and ARBOMaster approved.

Should I check with the council before work on a listed or conservation-area home?

Your local planning authority is the one to ask. They decide whether consent is needed.

Is sand mastic better than silicone for my windows?

It depends on the window. Period windows in stone or brick generally suit sand mastic and newer frames normally get a flexible sealant.

What exactly is sand mastic?

It’s a mix of sand and a linseed-oil-based binder. It’s built up in the joint by hand and finished to sit neatly against the masonry.

How long does sand mastic take to go off?

It takes a while. It skins first and hardens fully later and we will give you an idea for your job.

Are you ARBOMaster approved?

Yes. ARBOMaster is the approved applicator scheme for Arbo sealants, and we’re part of it.

Can you quote for more than one area?

Of course. Doing several areas at once is usually more efficient, so mention them when you ask for a quote.

About our sand mastic in Christmas Common

For a listed home or one in a conservation area, ask your local planning authority whether consent is needed for work to windows. Sand mastic is often favoured as a like-for-like material. We work on sash and case windows, timber door frames and tenement windows, and common reasons people get in touch are old sand mastic that has cracked, crumbled or fallen out and a silicone bead on a sash window that spoils the look.

In a village or hamlet like Christmas Common, older cottages and farmhouses often have timber windows set in stone or brick. Older buildings like these don’t always suit modern silicone, so the sealant has to be chosen to suit the building.

There’s a 12-month guarantee on every job.

Mr Mastic applicator sealing the top of a white uPVC door frame on a red-brick house
Location
Christmas Common (OX49)
Region
Oxfordshire
Cover
A year, on every job
Quote
A clear quote up front
Call
0345 464 0079
Updated
26 October 2026

How the visit works

On the day, we start by going over the job with you, so you know exactly what we’re doing. We protect the surfaces around the joints before any work begins. Most jobs take anything from a few hours to a full day, depending on how many windows. Somewhere as small as Christmas Common, access is often the only tricky part. For outside work, also let us know about exposed walls and any outbuildings involved.

  1. We check the window surrounds and agree which joints need renewing.
  2. The loose and crumbling mastic is raked out and the joint cleaned.
  3. We pack any deep gaps so the mastic sits at the right depth.
  4. We mix the sand mastic and apply it by hand, shaping it to the joint.
  5. The mastic is finished to sit tidily against the stone or brick.

Before we arrive

  • Mention if the joints have been sealed before
  • Mention any parking rules near the property
  • Clear items away from the joints we’re working on

Get a quote

If you’re in Christmas Common and need sand mastic, phone 0345 464 0079 or send us an email. Tell us what the problem is and where, and you will get a clear quote before work begins.

Ask for a quote

Read more

What affects the quote in Christmas Common

There’s no set price list. The quote depends on:

  • How many areas need sealing
  • How much there is to do
  • How much old sealant there is and how hard it is to remove
  • Any working-time requirements on site

Homes and businesses are quoted the same way: the amount of work, the access and the products needed. Call for a quick quote and we’ll go through it with you.

What to tell us for a quote

There’s no need for technical detail. It helps if you can tell us:

  • How many joints, rooms or windows are involved
  • The type of property
  • The address or postcode of the job
  • The problem you’ve noticed

For a quick quote, get us on the phone, or send an email if you’d rather. Tell us about the joints that need doing and we’ll explain what’s involved.

Should I try it myself first?

A careful DIYer can reseal a simple joint, like a short, easy-to-reach joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.

If you are set on DIY, put the effort into preparation: take out all the old sealant, make sure the joint is clean and dry, and give it the full cure time. If it doesn’t work out, we can still put it right.

Signs you need sand mastic in Christmas Common

Timber swells and shrinks with the weather. That movement opens up the mastic joint little by little.

Any of these means the joints need attention:

  • Failed mastic on an exposed elevation
  • Crumbling sand mastic round a window
  • Gaps round a timber door in stone or brick
  • Cement or filler used on old window joints that has cracked

For site and facilities teams at buildings such as Icknield Community College, its window and door frames need their mastic kept sound, just like a home’s.

What your quote should include

  • Whether VAT is included
  • How much experience the applicator has
  • What happens if they find a problem under the old sealant
  • What insurance they hold

Our hiring checklist

What sealant work can’t fix

In fairness, some problems need a different trade:

  • Sash cords, weights and draught-proofing of the sashes
  • Cracked or broken glass
  • Crumbling stone or brickwork round the window

If in doubt, call 0345 464 0079 or drop us an email and we will say what we think before you book.

Joints and surfaces we work on

  • Sash and case windows
  • Period & listed homes
  • Brick reveals
  • Tenement windows
  • Timber door frames
  • Stone surrounds

Surface by surface

Period and listed homes

On a listed home or in a conservation area, the right material matters. Sand mastic is often the preferred finish.

Stone surrounds

Old stone surrounds are often uneven, so the joint varies in width. We shape it by hand to follow the stone.

Windows and doors in Christmas Common

The South East is one of 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 Stonor Park (about 2.9 miles south-east) nearby, there’s older building stock in the area around Christmas Common as well as newer homes. Where a home is older, older frames set in brick or stone need a sealant that suits them, and sometimes that’s traditional sand mastic.

In the older streets around Church of the Nativity, the windows may be timber, sash or later replacements, and each needs the right sealant against the wall.

Christmas Common is about 8 miles south of Thame, in Oxfordshire. Whether you’re in the middle of Christmas Common or further out, sand mastic is available for homes and businesses alike, from flats and houses to offices and hotels. Christmas Common is one of 443 towns and villages in Oxfordshire where we work. Reading is on our list too, about 13 miles from Christmas Common.

Every address in OX49 is within our area for sand mastic. If you are just outside Christmas Common, we cover Northend (1 mile east), Howe Hill (1 mile south-west), Shirburn (2 miles north-west), Cookley Green (2 miles south-west) and Ibstone (2 miles east). Larger places within reach include Oxford (14 miles north-west), Didcot (12 miles west), Abingdon-on-Thames (14 miles west), Thame (8 miles north), Henley-on-Thames (7 miles south) and Benson (6 miles west).

Local landmarks in Christmas Common

Typical jobs here are in homes near Fox And Hounds Inn Public House and the streets around them. Green spaces nearby include Bald Hill and Aston Rowant NNR.

Map of Christmas Common © OpenStreetMap contributors

Why act early in Christmas Common

New mastic over crumbling mastic will not hold. Raking out and preparing the joint gives it a sound base so the new mastic stays put. In a small place like Christmas Common, homes can be exposed to wind and rain, which finds any gap, and damp in older walls is slow to dry out.

There are no prices on our website, because the cost depends so much on the job itself. For a quick quote, please ring 0345 464 0079 or drop us an email and we’ll talk you through it.

Why Christmas Common customers choose us

  • Full insurance on every job
  • ARBOMaster approved applicator
  • 20+ years of sealant experience
  • We leave the area clean and tidy

Read what affects the cost and what customers say.

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