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

Mastic contractors in Cliddesden

Construction mastic in Cliddesden, backed by over 20 years in commercial sealing. Fully insured, with a 12-month guarantee.

  • Existing joints on a refurb that need cutting out and resealing
  • Cracks opening in caulked internal joints
  • Early adhesion failures on new external joints
1
Send details
Drawings, photos, a joint schedule or a site visit.
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
Backed by a 12-month workmanship guarantee.
Covering the South East & Scotland
CHAS & Constructionline
£5m public liability

Need construction mastic in Cliddesden?

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

How we handle construction mastic in Cliddesden

On a new build, the mastic package is one of the last trades through each area, so it lands at exactly the point the programme is tightest. We work as a mastic subcontractor to main contractors and developers, following the trades through the building as rooms and elevations become ready. If you’re dealing with oversized or tapered gaps around new frames and mastic snags holding up handover, we can help. Looking for mastic applicators who cover Cliddesden? Mastic Doctor has worked for contractors, FMs and building owners since 2005, CHAS accredited and a Constructionline member.

Construction in and around smaller places such as Cliddesden 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.

A 12-month guarantee applies to all our work in Hampshire. Should something we installed fail, phone 01277 525 020 or email a schedule or drawings and we’ll come back to it.

The Mastic Doctor team beside their liveried vans in front of an office building
Place
Cliddesden (RG25)
Region
Hampshire
Guarantee
12 months on every job
Quote
Fixed quote, scope in writing
Telephone
01277 525 020
Last updated
3 November 2026

Cliddesden: questions and answers

Could you schedule work at a campus like Queen Mary's College for the vacation?

Yes. Tell us the term dates, vacation periods and access windows, and we’ll plan the work around them. Let us know which documents your site asks for, and we will confirm them alongside the quote.

Is a hospital such as Basingstoke and North Hampshire Hospital somewhere you can work?

Yes. We work in healthcare settings as well as offices and schools. We follow the site’s permits, sign-in and infection-control procedures in every area.

Does weather matter for sealant work?

Outside, yes. The joint has to be dry and within the product’s temperature range, so frost, rain or cold mornings can delay outside work. Inside work is seldom held up.

How soon can the area be used again?

That comes down to the sealant and the temperature. Some take light use quickly, others need longer to cure, and we confirm it before leaving site.

How much does the work cost?

There isn’t a price list, because every site is different. Send photos or drawings and we will price it at a fixed figure.

Do your applicators hold CSCS cards?

We are CHAS accredited and a Constructionline member, with CSCS-carded applicators. Public liability insurance of five million pounds is in place too.

Do you seal on top of existing sealant?

No. Failed sealant is removed and the faces cleaned back to sound, dry material first, because fresh silicone will not bond with aged silicone.

Doing it in-house

Some joints are best left to specialists: for example fire-rated seals that must match a tested detail, trafficked floor joints and external movement joints. Getting these wrong typically costs more in the end than doing them right.

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.

Construction mastic around Cliddesden: how the place shapes the job

Cliddesden is in the South East, one of the UK’s drier regions. 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 area within 2 miles of Cliddesden holds a number of hotels. Hotel refurbishments often run to tight programmes between busy periods, and perimeter and sanitary sealant has to keep up.

When a college such as Queen Mary's College, 1.3 miles to the north of Cliddesden, builds or refurbishes, the mastic package usually has to fit around students and staff. Hotel extensions and refits, at places such as Audleys Wood Hotel, 0.8 miles to the north-east of Cliddesden, typically run between busy periods, so the sealing is squeezed into short windows.

Cliddesden is about 2 miles south of Basingstoke, in Hampshire. Businesses, contractors and managing agents in Cliddesden can call on us for mastic packages. 723 places across Hampshire fall within our area, Cliddesden among them. We also cover Reading, some 15 miles away.

We take on mastic packages across the RG25 postcode area, for business premises of every kind. If your site is on Station Road, Church Lane and Hoopersmead or close by, we can quote for mastic packages. Just outside Cliddesden, we also work in Viables (1 mile north), Eastrop (2 miles north), Ellisfield (2 miles south), Oakridge (2 miles north) and Upper Common (2 miles south). Nearby towns on our patch include Farnborough (15 miles east), Fleet (11 miles east), Aldershot (15 miles east), Alton (8 miles south-east), Yateley (13 miles north-east) and Tadley (8 miles north).

Near you in Cliddesden

We work on buildings around Brighton Hill Community School, Hackwood Park and Jolly Farmer Public House. The nearest railway station is Basingstoke station, roughly 2.2 miles north of the centre. Nearby you will also find Basing House (2.9 miles north-east) and Festival Place (2 miles north). Open spaces near Cliddesden include Farleigh Hill and The Mill Field.

Map of Cliddesden © OpenStreetMap contributors

How a job runs

Before any cutting starts, the area is protected: tape along each joint edge and covers over finishes, stock and equipment close by. On site, the work usually takes whatever the programme allows, since the work follows the trades as areas are released, and we clear our waste as we work. Smaller jobs around Cliddesden can be grouped with others nearby. You’ll have a fixed quote before work starts.

  1. Drawings, specification and programme come to us.
  2. We take off quantities and return a fixed quote.
  3. The sequence is agreed with the site manager.
  4. Plots or floors are sealed as they’re handed over.
  5. Joints are prepared, backed and sealed to the specification.
  6. After snagging, the work is handed over under our 12-month guarantee.

Before we start on site

  • Explain the parking and delivery arrangements
  • Share your working hours and any access restrictions
  • Tell us what induction or permit system the site runs

Getting a fixed quote

To get a fixed quote, give us a call on 01277 525 020 or send photos by email, telling us the site location and the nature of the job. Our quote form is another easy route.

Get a quick quote

Related advice

Aftercare for building managers

Your facilities or cleaning team can help the joints last. Share these points with them:

  • Put any product change through the designer first
  • Ask for joint and product checks before the package is urgent
  • Plan external elevations with the weather in mind
  • Bring the mastic contractor in after the last trades are through

Any damage after we’ve finished should go on the snag list straight away. We can return to clear snags before handover.

In wet areas, a weak sanitary joint shows up quickly once the building is occupied. Leaks behind showers and basins damage finishes and floors, and the repair falls into the defects period. Proper preparation, with the right silicone first time, keeps it off the defects list.

How the quote is worked out

Sealant work doesn’t have a standard rate, because every site is different. What we take into account:

  • Backing rod, priming and other preparation
  • How accessible the joints are
  • Whether old sealant has to be cut out first
  • The site’s rules and procedures

Access often affects the price as much as the sealing: easy-to-reach joints are quicker than those that need equipment to get to. Tell us how the joints are reached and call for a quote.

What to include in your enquiry

Whether it’s one area or a whole building, the same details help:

  • Access details, including height
  • Rough lengths or quantities, or drawings if you have them
  • The site address and postcode
  • Specification clauses that apply

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, call 01277 525 020 or send details through our quote form.

When to call us in Cliddesden

Three-sided adhesion is a frequent fault on new work. Bonded to the base of the joint and both sides, sealant can’t stretch evenly so we set the depth properly before sealing.

Look out for the following:

  • Inconsistent sealant finishes from plot to plot
  • Cracks opening in caulked internal joints
  • Existing joints on a refurb that need cutting out and resealing
  • Mastic snags holding up handover

On a healthcare site such as Basingstoke and North Hampshire Hospital, which lies north of Cliddesden, new blocks and refurbishments go on while the hospital keeps running, so mastic work is sequenced carefully.

Before you book anyone

  • Will RAMS and insurance details be available?
  • Their pre-qualification and accreditations
  • Their approach to joint depth and backing
  • Whether old or failed sealant will be cut out, not overlaid

Choosing a commercial sealant contractor

What the job involves on each surface

External facade and movement joints

Movement joints in the facade are sealed with a product suited to the expected movement. Depth is controlled with backing rod so the bead bonds to two sides only.

Internal decorators’ caulk

Caulking is often done in a hurry by whoever’s on site. A neat, consistent caulk line makes the decorators’ job quicker and reduces snags.

Accreditations

Trusted. Accredited. Insured.