The Mastic Doctor team standing beside their branded vans outside an office building
Hampshire · England

Construction and new-build mastic in Cheriton, Hampshire

Mastic packages for new-build and refurbishment projects throughout Cheriton and nearby, by CSCS-carded applicators. Fully insured and CHAS accredited.

  • Frame gaps too wide for sealant alone
  • Snag items on joints that need redoing before handover
  • Failed sealant in an existing building being refurbished
1
Send details
Send the specification, photos or a marked-up plan.
2
Get a quote
One fixed quote covering the agreed scope.
3
We seal
Failed joints cut out, faces prepared, new sealant laid.
4
Guaranteed
Signed off, with 12 months’ guarantee.
Covering the South East & Scotland
CHAS accredited
£5m PL insurance

Construction mastic near Cheriton

Tell us what needs sealing and where, with photos or drawings if you have them, and we’ll price it.

Construction mastic in Cheriton

On a new build, the mastic package is one of the last trades through each area. Mastic Doctor takes on mastic packages for main contractors and developers with projects in Cheriton, sealing plot by plot or floor by floor as areas are released. If you are dealing with a mastic package split between trades with no clear owner and new external sealant already peeling away, we can help, whatever the surface. For commercial sealant work in Cheriton, you deal with one contact from quote to sign-off, for single jobs and planned programmes alike.

For a site near Cheriton, the mastic visit is planned so the right sealants, primers and backing rod are on hand, timed to the stage the job has reached. Send drawings or photographs and the programme and we will quote to suit.

Every job we finish is backed by a 12-month workmanship guarantee. If our installation lets you down in that time, we return and fix it.

Mastic Doctor team members lined up next to their branded vans outside an office building
Place
Cheriton (SO24)
Wider area
Hampshire
Guarantee
12 months on every job
Quotes
Quoted before any work starts
Telephone
01277 525 020
Last updated
3 November 2026

Cheriton: questions and answers

Will you fit the mastic around our build programme in Cheriton?

Yes. The mastic is planned around your key stages. Tell us which site documents you need, such as RAMS, our insurance certificate or CSCS details, and they’re confirmed with the quote.

Which documents can you supply for work in Cheriton?

Whatever your site asks for, from RAMS to CSCS details, is confirmed when we quote. We are CHAS accredited and a Constructionline member, with £5m public liability insurance and CSCS-carded applicators.

Do you take on multi-site work?

Yes. We take on portfolio and planned maintenance work, planned site by site to suit how each building is used.

Do you cover Cheriton?

Yes. We cover Cheriton and the rest of Hampshire, within our coverage of Greater London, South East England and Scotland. For a quote, give us a call on 01277 525 020 or send details through our quote form.

Do you need to see the site first?

That depends on the size and complexity of the job. Straightforward work can often be priced from photos and measurements, and bigger or more complex jobs usually get a visit.

What happens if old sealant might contain asbestos?

Some older mastics, especially in pre-2000 buildings, can contain asbestos. We check the asbestos register before cutting out old sealant in an older building, and work stops until any suspect material has been tested. We don’t remove asbestos-containing materials.

Can the sealant be colour-matched?

It depends on the product. Some ranges offer many colours, others very few, so we’ll confirm the colours available for the specified product with the quote.

Work for main contractors and building owners

Planned maintenance programmes are welcome: resealing failed joints building by building, on a schedule that suits your budget. Cheriton can form part of a wider programme across Hampshire.

Facilities managers want contractors who arrive with the paperwork sorted. Let us know the documents you need (RAMS, insurance certificate, CSCS details) and we’ll confirm them with the quote.

Construction mastic in Cheriton: the local picture

Central London is about 56 miles from Cheriton. Building activity in the commuter belt runs from new flats near stations to business park refurbishments, which keeps mastic packages in demand. Rainfall across the South East, Cheriton included, is lower than in many parts of the UK. Winter mornings still bring frost and condensation on frames and panels, which is why external dates are agreed with the site manager.

School extensions, at buildings such as Cheriton Primary School, typically run to the summer holidays, mastic included. With historic properties like Hinton Ampner House, 0.8 miles to the south-east of Cheriton, in the area, refurbishment work often meets old masonry that needs compatible sealants.

Cheriton is about 7 miles east of Winchester, in Hampshire. We send applicators to Cheriton for mastic packages, handled exactly as we handle every other area. We work across 723 places in Hampshire, large and small. For work in that direction, see our Southampton page.

We take on mastic packages across the SO24 postcode area, for business premises of every kind. For a building on Lower Lamborough Lane, Raebarn Close and Markall Close or nearby, we can quote for mastic packages. If your building is just outside Cheriton, we cover Hinton Ampner (1 mile east), Beauworth (2 miles south-west), Bramdean (2 miles east), New Alresford (2 miles north) and Bishop's Sutton (3 miles north-east). Nearby towns on our patch include Basingstoke (15 miles north), Winchester (7 miles west), Havant (15 miles south-east), Eastleigh (10 miles south-west), Fareham (14 miles south) and Horndean (12 miles south-east).

What’s near Cheriton

Locally, jobs take us to sites close to The Flowerpots Inn. For a walk, there’s Beacon Hill and Shutts Copse.

Map of Cheriton © OpenStreetMap contributors

Cost factors for mastic packages

There’s no standard rate for sealant work, since sites vary so much. What we look at:

  • Access and working height
  • Whether the work must be split into stages
  • How much there is to seal
  • How much existing material needs removing

Pricing mastic packages depends on quantities, condition and access, plus any specification you are working to. Ask us for a fixed quote.

Before you send an enquiry

The more we know, the firmer the quote. Helpful details to send:

  • Asbestos survey details if the building is older
  • What the building is and how it’s used
  • Where the site is, with the postcode
  • When you need the work done

Pricing a project or setting a maintenance budget? We will quote against your scope and drawings you can plan around. For a chat about it beforehand, give us a call on 01277 525 020 or email a schedule or drawings.

Different surfaces, different methods

Internal decorators’ caulk

Where the specification calls for it, acrylic decorators’ caulk goes on non-moving internal gaps before painting. It’s for gaps that stay still and get painted, and we use a flexible sealant where there’s movement.

Snagging before handover

The last pass before handover is where mastic snags are cleared. Snags are cleared room by room, cutting out damaged joints and resealing them properly.

Aftercare for building managers

Once the work is signed off, these steps help:

  • Get the mastic subcontractor involved early in the programme
  • Brief following trades on areas that have been sealed
  • Keep scrapers and abrasive pads off new beads
  • Plan external elevations with the weather in mind

At handover, keep the product details with the O&M information. Future maintenance is easier when the products are known. We can confirm the handover information you need when we quote.

One unsealed frame can let water into finished internal areas. That typically means redoing finishes in a completed area, and a delay to handover. A check of every frame before decorators start is worth the time.

Honest limits

We check first that sealant really is the fix. It won’t put right:

  • Deciding which fire-stopping product a penetration needs
  • Glazing units that are cracked or misted
  • Rework caused by others damaging completed areas

If you are not sure, just call 01277 525 020 or send photos by email and we will give you a straight answer.

Joints and surfaces we work on

  • Sanitary and kitchen joints
  • Internal decorators’ caulk
  • Floor and skirting junctions
  • Brick and block movement joints
  • Window and door perimeters
  • Cladding and panel joints

How a job runs

We schedule the visit to fit the site hours and access windows you give us. While we are working, the area stays contained and tidy, and your contact hears from us before we move to the next area. Jobs in and around smaller places like Cheriton are usually planned as a single visit, so photographs and measurements up front really help. That way the right products come on the day.

  1. We walk the site or review drawings to understand the package.
  2. You receive a fixed quote covering scope, products and sequence.
  3. Site paperwork is confirmed and our CSCS-carded applicators are inducted.
  4. Sealing follows the programme as areas are released.
  5. Problems we find, such as oversized gaps, are raised right away.
  6. The package is closed out, snags cleared and backed by our 12-month guarantee.

Preparing the site

  • Let building users know which areas are affected
  • Clear stock, furniture or equipment away from the joints
  • Tell us which areas need to stay in use

Ask for a quote

Let us know the site, the scope and your timescale, and a fixed quote will follow. The easiest way is to give us a call on 01277 525 020 or email the details over.

Get a quick quote

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