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

Construction and new-build mastic in Old Basing, Hampshire

Our CSCS-carded applicators take on mastic packages for new-build and refurbishment projects in Old Basing. Send photographs or drawings for a fixed quote.

  • Missed perimeter joints on a new elevation
  • Cracks opening in caulked internal joints
  • Frame gaps too wide for sealant alone
1
Send details
Drawings, photos, a joint schedule or a site visit.
2
Get a quote
A fixed price, with what’s included set out clearly.
3
We seal
CSCS-carded applicators, the right product for each joint.
4
Guaranteed
Our workmanship is guaranteed for 12 months.
London, the South East & Scotland
CHAS & Constructionline
£5m PL insurance

Construction mastic in Old Basing

Share the site address and what’s failing, and we’ll reply with a fixed quote or arrange a visit.

Do you need construction mastic in Old Basing?

Value-engineered products sometimes end up in the wrong joints. A general-purpose silicone on a facade or a caulk in a wet area won’t perform like the specified product. We stick to the specified product, or put any alternative to you first.

If one of these sounds familiar, it’s time for a closer look:

  • Perimeter gaps outside the sealant’s range
  • Window and door perimeters that won’t pass inspection
  • Failed sealant in an existing building being refurbished
  • Mastic snags holding up handover

Hotels like Hampshire Centre Court Hotel, 1.2 miles north-west of Old Basing, rarely close for long, so refurbishment mastic is phased floor by floor.

What to look for in a quote

  • Their plan for phasing and protecting the area
  • How the joint faces will be prepared and primed
  • Which product they’ll use, and why it suits the joint
  • How joint depth will be controlled

How to choose a sealant contractor

How we handle construction mastic in Old Basing

Getting a subcontractor through site induction should be simple. Our applicators are CSCS-carded, and we’re CHAS accredited and a Constructionline member, and we’re fully insured. RAMS, an insurance certificate and CSCS details can be confirmed with the quote if you tell us what you need. Site teams most often ask us about sealant knocked or painted over by other trades and window and door perimeters that won’t pass inspection, on floor and skirting junctions, cladding and panel joints and sanitary and kitchen joints. A specialist sealant contractor works differently from a general builder: on jobs in Old Basing, preparation and product choice get the time they need.

Building work in places the size of Old Basing is normally small-scale: a handful of new houses, barn conversions, a school or hall extension. Even a small site needs its perimeter and facade joints sized, backed and sealed properly.

The 12-month guarantee covers our workmanship: preparation, application and finish. Damage, later alterations by others and movement beyond what the joint was designed for sit outside it.

The Mastic Doctor team beside their liveried vans in front of an office building
Location
Old Basing (RG24)
Region
Hampshire
Guarantee
12 months on every job
Price
Fixed quote, scope in writing
Telephone
01277 525 020
Page updated
3 November 2026

Leave it or put it right?

Leaving mastic to whichever trade is fitting the element can look cheaper on paper. In practice it often means different standards, gaps in responsibility and snags nobody owns. A single mastic package gives one point of responsibility, with the same standard on every plot. In a smaller place such as Old Basing, getting a contractor back for a second visit takes time, so we’d suggest renewing all the joints that are going, not just the worst.

Small jobs and large programmes are priced from the same things: scope, access, product and programme. Call for a quote and we’ll put a fixed figure on it.

Why clients in Old Basing choose us

  • Constructionline member for supplier checks
  • Clear, fixed quotes
  • Workmanship guaranteed for 12 months
  • Joints cleaned back to sound surfaces

Read our cost guide or how we’re accredited.

Our process

Before any cutting starts, the area is protected: masking tape along the joint edges and sheeting over anything nearby. The work itself usually takes a few days on a modest refurbishment and longer on multi-plot or multi-storey schemes, and we clear our waste as we work. Several jobs near Old Basing can be grouped on one trip. Tell us your site hours and we’ll plan around them.

  1. Drawings, the sealant specification and your programme come to us for pricing.
  2. We return a fixed quote that ties the mastic package to your programme.
  3. Any site paperwork you need (RAMS, insurance certificate, CSCS details) is confirmed with the quote.
  4. Work follows the programme, area by area, as rooms and elevations become ready.
  5. Each joint is prepared, backed to depth and sealed in the product the specification names.
  6. We close out snagging and hand over with a 12-month guarantee.

Getting the site ready

  • Share the asbestos register for older buildings
  • Point out parking and an unloading spot
  • Tell us your opening times and when work is allowed

Ask for a quote

Let us know the site, the scope and your timescale, and we’ll put a fixed quote together. The easiest way is to give us a call on 01277 525 020 or use the quote form.

Get a quick quote

Read more

Common questions from Old Basing clients

Is Old Basing off your patch?

Not at all. Old Basing is within our area. Our area covers London and the South East counties. Send photos and a list of what needs doing, and we’ll plan the job to need as few trips as possible.

Do you cover business parks and estates near Old Basing, such as Hatch Industrial Park?

Yes. We cover Old Basing and the area around it, including industrial estates, business parks and retail parks such as Hatch Industrial Park. Send details of the unit and the work through our quote form for a quick quote.

Can weather delay the job?

For external joints, yes. The joint has to be dry and within the product’s temperature range, so frost, rain or cold mornings can delay outside work. Internal work is rarely affected.

Will you just go over the old sealant?

No. We cut the old material out and clean the joint back before sealing, because fresh silicone will not bond with aged silicone.

How long do sealant joints last?

Nobody can honestly give a figure in years, since movement, weather, cleaning and use all affect it. Regular checks let you plan resealing before leaks or damage.

Are you fully insured?

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

Is colour matching possible?

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

Facades, frames and programmes in Old Basing

The South East is one of the drier parts of the UK. Still, external mastic needs dry faces within the maker’s temperature limits, which isn’t every day, which is why external dates are agreed with the site manager. Several hotels sit less than 2 miles from Old Basing. Hotel refurbishments often run to tight programmes between busy periods, and perimeter and sanitary sealant has to keep up.

School extensions, at buildings such as Old Basing Infant School, usually run to the summer holidays, mastic included. On a healthcare site such as Basingstoke and North Hampshire Hospital, 3 miles to the west of Old Basing, new blocks and refurbishments go on while the hospital keeps running, so mastic work is sequenced carefully.

Old Basing is about 3 miles east of Basingstoke, in Hampshire. We send applicators to Old Basing for mastic packages, handled exactly as we handle every other area. 723 places across Hampshire fall within our area, Old Basing among them. There’s a separate page for Reading, roughly 13 miles from Old Basing.

Work on mastic packages is covered throughout RG24, for business premises of every kind. Among the streets we cover are The Street, London Road and Paulet Place, and sites on any of them can send details for a fixed quote. Just outside Old Basing, we also work in Lychpit (1 mile west), Mapledurwell (1 mile east), Andwell (1 mile east), Water End (2 miles east) and Chineham (2 miles north). A short drive away, we cover Basingstoke (3 miles west), Farnborough (12 miles east), Fleet (9 miles east), Aldershot (12 miles east), Alton (9 miles south) and Yateley (10 miles north-east).

Landmarks near Old Basing

We work on buildings around The Costello School, Eastrop Park and The Crown Public House. The nearest railway station is Basingstoke station, about 2 miles west. Other landmarks nearby include Festival Place (1.9 miles west) and Basing House (under half a mile west). Open spaces near Old Basing include Farleigh Hill and The Mill Field.

Map of Old Basing © OpenStreetMap contributors

Aftercare for building managers

Problems stay small when the joints are checked regularly. Specifically:

  • Put any product change through the designer first
  • Note which sealant went where at handover
  • Allow flexibility for external sealing in damp or cold weather
  • Don’t schedule sealing before decorators and flooring are done

If a joint is damaged after sealing, flag it early. Snags can be picked up in a planned close-out visit as agreed in the quote.

Sealing outside when the joint is damp or too cold leads to poor adhesion. Waiting for a dry joint and the right temperature is better than redoing work, so we plan external work with that in mind.

For managing agents and facilities managers

Facilities managers want contractors who arrive with the paperwork sorted. Tell us what site paperwork you need, such as RAMS, an insurance certificate or CSCS details, and we will confirm with the quote.

We take on planned maintenance as well as one-off repairs: working through a building or an estate in stages that fit your budget. Old Basing can form part of a wider programme.

Doing it in-house

Certain joints really need a specialist: for example fire-rated seals that must match a tested detail, trafficked floor joints and external movement joints. A poor seal in places like these tends to cost more to put right later.

What you see is the finished bead, but most of the work is hidden. Backing rod, primer where specified and a joint designed to move with the building are where general trades tend to cut corners.

Accreditations

Trusted. Accredited. Insured.