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

The Sands construction mastic

Sealant work in The Sands for main contractors, managing agents and facilities managers: mastic packages for new-build and refurbishment projects, with a fixed quote first.

  • Bath and shower joints scraped during the final clean
  • Different trades sealing to different standards
  • Frame perimeters left unsealed or poorly sealed
1
Send details
Tell us about the site, with photos if you have them.
2
Get a quote
A fixed price, with what’s included set out clearly.
3
We seal
The right sealant, to the right depth, neatly finished.
4
Guaranteed
Signed off, with 12 months’ guarantee.
South East, London & Scotland
Constructionline member
£5m PL insurance

Need construction mastic in The Sands?

Photos, a specification or a quick description of the joints is enough to start a fixed quote.

Construction mastic in The Sands

Refurbishment work needs a slightly different approach from new build. Existing joints have to be stripped back to sound faces, because fresh sealant can’t key into cured silicone. After that, the joints are prepared and sealed to the specification. Most enquiries involve failed sealant in an existing building being refurbished and caulk cracking where joints are moving more than expected, on floor and skirting junctions, sanitary and kitchen joints and internal decorators’ caulk. A specialist sealant contractor works differently from a general builder: on jobs in The Sands, preparation and product choice get the time they need.

Construction in and around smaller places such as The Sands is often barn conversions, small groups of houses or extensions to halls and schools. Each still needs a proper mastic package: window perimeters, facade joints and internal sealant to the specification.

We stand by our work with a 12-month guarantee. It covers how we prepared and applied the sealant.

Mastic Doctor team members lined up next to their branded vans outside an office building
Where
The Sands (GU10)
Region
Surrey
Guarantee
12 months on our workmanship
Quote
Fixed quote, scope in writing
Call
01277 525 020
Updated
3 November 2026

When to call us in The Sands

On a live site, contamination is the biggest threat to a new joint. Plaster dust, release agents, protective film residue and damp all stop sealant bonding.

Typical triggers for a call:

  • Missed perimeter joints on a new elevation
  • Sanitary sealant damaged by following trades
  • Inconsistent sealant finishes from plot to plot
  • Failed sealant in an existing building being refurbished

Further education sites such as Aldershot College, 2.4 miles to the north of The Sands, are extended and refurbished from time to time, with mastic often programmed into the summer break.

Before you book anyone

  • Which product they’ll use, and why it suits the joint
  • Will RAMS and insurance details be available?
  • Who will actually carry out the work
  • Their plan for phasing and protecting the area

How to choose a sealant contractor

Diagnose, treat, sign off

Our CSCS-carded applicators arrive with the sealants, primers and backing rod the job calls for. Joint faces are cleaned back to sound, dry surfaces, primer goes on where the manufacturer specifies it, and each bead is tooled to a neat concave finish. For a building around The Sands, tell us how to find it and who will meet us. Add it to your enquiry and we will build it into the plan.

  1. First we look at the scope on site or from drawings.
  2. You receive a fixed quote covering scope, products and sequence.
  3. Site paperwork is confirmed and our CSCS-carded applicators are inducted.
  4. We seal plot by plot or floor by floor in line with the programme.
  5. Any frame gaps or issues outside our scope are flagged to the site team.
  6. The package is closed out, snags cleared and backed by our 12-month guarantee.

Getting the site ready

  • Send asbestos survey details if the building is pre-2000
  • Tell us which areas need to stay in use
  • Let us know about inductions and permits

Ask for a quote

Tell us about the building, the joints and when you need the work done, and we’ll put a fixed quote together. To get it moving, give us a call on 01277 525 020 or use the quote form.

Get a quick quote

Advice

Why act early in The Sands

Refurbishments sometimes budget for new windows when the frames are sound and only the seal has failed. If the frame is in good order, cutting out and resealing the perimeter can be all it needs. If the frame is life-expired, we’ll tell you. For buildings around smaller places like The Sands, water damage can go unnoticed for longer, especially where a building isn’t used daily, so a failed joint can leak for a while before anyone sees it. Renewing joints in good time avoids the problem.

Larger quantities, tricky access or phasing all shape the price. Site requirements like inductions and permits play a part as well.

Why clients in The Sands choose us

  • Public liability insurance in place
  • Constructionline member
  • One number for every site we cover
  • Commercial sealant work since 2005

Take a look at our cost guide and our accreditations.

New build and refits around The Sands

Rainfall across the South East, The Sands included, is lower than in many parts of the UK. That doesn’t stop wet spells, or frosty starts that leave panels too damp to seal, so the external programme keeps a little slack. The Sands lies roughly 34 miles out from central London. Towns within reach of London tend to keep building, from flats to offices and schools, and main contractors there need mastic that keeps to the programme.

University estates such as University for the Creative Arts, 2.9 miles west of The Sands, tend to have a rolling programme of new buildings and refurbishments, each with window perimeters and facade joints to seal. Units on estates such as The Sands Business Centre, under half a mile to the north-west of The Sands, tend to be reclad and refitted as tenants change, and each job leaves cladding and perimeter joints to seal.

The Sands is about 2 miles east of Farnham, in Surrey. Commercial clients in The Sands can call on us for mastic packages, as part of our coverage of Surrey. The Sands is one of 379 places we cover in Surrey. Reading is covered too, around 19 miles from The Sands.

We take on mastic packages across the GU10 postcode area, whatever the building. Streets here include The Green, Binton Lane and Botany Hill. Just outside The Sands, we also work in Runfold (1 mile west), Sandy Cross (1 mile north), Compton (1 mile west), Seale (1 mile north-east) and Tongham (2 miles north). A short drive away, we cover Guildford (8 miles east), Woking (10 miles north-east), Camberley (9 miles north), Frimley (7 miles north), Haslemere (9 miles south) and Cranleigh (12 miles south-east).

Near you in The Sands

Around The Sands, our work takes us to commercial buildings near Crooksbury Hill. For rail, the closest station is Farnham station, roughly 2.3 miles west. Other landmarks nearby include Milford Hospital (5.7 miles south-east) and Farnham Castle (2.8 miles west). Green spaces nearby include Culverswell Hill and Runfold Wood.

Map of The Sands © OpenStreetMap contributors

Questions we are asked in The Sands

Could you schedule work at a campus like University for the Creative Arts for the vacation?

Yes. Tell us the term dates, vacation periods and access windows, and we’ll plan the work around them. Tell us which site documents you need, such as RAMS, our insurance certificate or CSCS details, and they’re confirmed with the quote.

Do you cover business parks and estates near The Sands, such as The Sands Business Centre?

Yes, sites like The Sands Business Centre are within our area, along with the rest of The Sands. To start, just phone 01277 525 020 or email us with the unit, the joints involved and your access times.

Can you work plot by plot or floor by floor?

Our work is sequenced around the programme. Each plot, floor or elevation is sealed when it’s ready and we tell you if something stops an area being sealed.

How do I request a quote?

It works in four steps: send details, receive a fixed quote, we carry out the work, and it’s guaranteed. The first step only needs photographs and a postcode.

What about RAMS and site documents?

Each site asks for different documents, so list what you need, whether RAMS, insurance or CSCS details, and we will confirm with the quote.

Are you insured?

Yes. We are fully insured, and the certificate can go with your quote.

What happens if the weather stops external sealing?

Weather matters for external sealing: each sealant has a temperature range, and the joint must be dry. External work is sequenced with some flexibility.

Should maintenance staff do it?

Some joints are best left to specialists: fire-rated seals that must follow a tested detail, trafficked floor joints and external movement joints among them. A poor seal in places like these tends to cost more to put right later.

For a quick touch-up, site staff may be fine, but larger jobs are different: a specialist brings efficiency, a consistent finish and a 12-month guarantee.

When it isn’t the sealant

We seal joints; we don’t mend everything behind them. Sealant alone won’t deal with:

  • Fire-stopping design or sign-off (that’s for the designer, fire engineer and building control)
  • Damage to finishes by other trades after we’ve sealed
  • Specifying the product where the designer hasn’t

Not sure which it is? You can call 01277 525 020 or email a schedule or drawings and we’ll tell you honestly before you book.

Surfaces we seal

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

Surface by surface

Kitchens and utility areas

Worktop upstands, sinks and splashbacks are sealed once the kitchen is fitted. The sealant is a kitchen-grade product, food-safe where food contact is possible.

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.

Accreditations

Trusted. Accredited. Insured.