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

Basingstoke construction mastic

Mastic packages for new-build and refurbishment projects across Basingstoke, carried out by CSCS-carded applicators. Fully insured and CHAS accredited.

  • Missed perimeter joints on a new elevation
  • Existing joints on a refurb that need cutting out and resealing
  • A long mastic snag list close to completion
1
Send details
Photos, drawings or a schedule, or we 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.
London, the South East & Scotland
CHAS accredited
Fully insured: £5m PL

Need construction mastic in Basingstoke?

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

Surface by surface

Kitchens and utility areas

Commercial kitchens often need hygienic or food-safe sealants. We follow the specification and seal to a smooth, cleanable finish.

Fire-rated sealant where specified

Fire-rated sealant is one type of fire-stopping product. Collars, wraps, batts and boards are specified for other services. Record requirements are agreed with the quote.

How we handle construction mastic in Basingstoke

Mastic Doctor has been a subcontractor on construction projects for over 20 years. Quantities come off the drawings, the sequence is agreed with the site manager and the work follows the trades. For construction mastic on a scheme in Basingstoke, send drawings through our quote form, or phone or email us to talk it through. If you’re dealing with sanitary sealant damaged by following trades and missed perimeter joints on a new elevation, we can put it right. Whoever orders the work in Basingstoke, the brief is typically the same: a fixed quote, no surprises on site and a 12-month guarantee behind the result.

In a large town such as Basingstoke, plenty of construction is refurbishment: recladding units, new shopfronts, replacement windows. All of it ends in perimeter and panel joints that need correct sizing, backing and sealant.

Every job is signed off with a 12-month guarantee. It’s a plain promise: if our work fails within that year, we put it right.

Mastic Doctor team members lined up next to their branded vans outside an office building
Place
Basingstoke (RG24, RG22, RG21, RG23)
Wider area
Hampshire
Guarantee
12 months on our workmanship
Quotes
A fixed quote before we start
Call
01277 525 020
Page updated
3 November 2026

Common questions from Basingstoke clients

Can work at a site such as Basingstoke College of Technology fit around teaching?

Yes. Education sites typically want the work in vacations or in phases during term, and we plan to suit. We’re CHAS accredited and a Constructionline member, and paperwork such as RAMS is confirmed with the quote.

Can you take on a job at a hospital such as Basingstoke and North Hampshire Hospital?

Yes. Healthcare sites are among the places we work. The estates team’s permit system and infection-control rules come first, and the work is planned around them.

Do you cover Basingstoke?

Yes. We cover Basingstoke, within our coverage of Greater London, South East England and Scotland. To discuss a job, speak to us on 01277 525 020 or email drawings and photos.

When can you be on site?

The office is staffed Monday to Friday, from 8am until 5pm. Let us know your site hours and access windows, and the work will be planned around them.

Can you come in just for snagging?

Yes. We can work through a mastic snag list area by area before handover, cutting out damaged or poor joints and resealing them.

Will you just go over the old sealant?

No. We cut the old material out and clean the joint back before sealing, since fresh sealant will not bond reliably to aged material.

Can you work plot by plot or floor by floor?

We seal plot by plot or floor by floor as areas are released. The sequence is agreed with the site manager at the start.

Mastic packages on Basingstoke sites

At about 46 miles from central London, Basingstoke is within reach of the capital. 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. A 2-mile radius around Basingstoke takes in plenty of hotels. Hotel extensions and refits usually have to fit around bookings, so mastic dates are tight.

For contractors at a school such as King's Furlong Infant School and Nursery, sealing has to be finished before term starts. New wings at hospitals like Basingstoke and North Hampshire Hospital, 1.2 miles north of Basingstoke, bring long runs of window and panel joints to seal.

Basingstoke is in Hampshire. If you are looking for construction mastic in Basingstoke, we can help. Basingstoke is one of 723 places in Hampshire on our list for mastic packages. Reading is covered too, some 14 miles away.

Commercial sites across RG24, RG22, RG21 and RG23 are covered for mastic packages. Among the streets we cover are Church Square, Queen Annes Square and The Square. Main routes into Basingstoke include the A30 and A33, which helps when planning parking and deliveries for the job. We also cover South Ham (1 mile south-west), Winklebury (1 mile west), Brighton Hill (1 mile south), Rooksdown (1 mile north-west) and Buckskin (1 mile west). Bigger towns within reach include Farnborough (15 miles east), Fleet (11 miles east), Aldershot (15 miles east), Alton (10 miles south-east), Yateley (13 miles north-east) and Tadley (6 miles north). As one of the bigger centres in Hampshire, Basingstoke has a broad mix of commercial, public and industrial buildings, and we cover them all.

Near you in Basingstoke

We work on buildings around Cranbourne, The Costello School and The Rising Sun pub and the streets around them. The closest station to Basingstoke is Basingstoke station, roughly 0.6 miles east of the centre. Nearby you’ll also find Basing House (2.2 miles east) and The Malls (0.6 miles east). Green spaces nearby include Farleigh Hill and Daneshill Park Woods.

Map of Basingstoke © OpenStreetMap contributors

Diagnose, treat, sign off

Occupied buildings need a little choreography. We sign and contain the area we are in, keep walkways clear and move on in phases so staff and visitors can carry on around us. Bigger buildings in Basingstoke are usually done in phases agreed with the site or facilities manager, keeping disruption low. Send drawings or photographs and we will set out a phasing plan with the quote.

  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. You tell us what site paperwork you need, such as RAMS, an insurance certificate or CSCS details, and we confirm it with the quote.
  4. Areas are sealed plot by plot or floor by floor as the trades hand them over.
  5. Every joint is prepared, set to depth and sealed with the specified product.
  6. Snags are cleared before handover and completed areas carry our 12-month guarantee.

Getting the site ready

  • Let us know about inductions and permits
  • Warn occupants and staff about the work
  • Send asbestos survey details if the building is pre-2000

Getting a fixed quote

A good quote starts with a clear picture: the joints involved, quantities, access and the product called for. Share whatever details you have and we will fill any gaps with a visit.

Ask for a quote

Read more

How the quote is worked out

Your fixed quote is built from the real scope. It takes account of:

  • Phasing around occupants
  • The product specified
  • Travel to remote or island sites
  • Whether old sealant has to be cut out first

Small jobs and large programmes are priced from the same things: what’s in scope, how we reach it, what’s specified and when it needs doing. Call for a quote and we will put a fixed figure on it.

Details that help us quote

For an accurate fixed quote, we need to understand the site. Useful things to include:

  • Any specification or named product
  • Access details, including height
  • Any dates the work must fit around
  • Asbestos survey details if the building is older

Specifications, drawings and tender packages are welcome with any enquiry, and we’ll price the work to it. Smaller jobs need nothing more than photos and a few notes.

When to bring in a specialist

Putting right a botched joint often costs more than sealing it well at the start, since all of it has to come out and the faces be cleaned back again. For that reason, many FMs and contractors use a sealant specialist from the outset.

Certain joints really need a specialist: 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.

When to call us in Basingstoke

Wide, tapered or inconsistent gaps around frames are a common problem. Sealant has a range of joint widths it can cope with, so gaps outside that range need sorting by the installer first. Better to raise it at the start than seal a joint that’s bound to fail.

Things that typically lead to an enquiry:

  • Window and door perimeters that won’t pass inspection
  • Different trades sealing to different standards
  • Caulk cracking where joints are moving more than expected
  • Frame gaps too wide for sealant alone

Work at a hotel such as Great Western Hotel, 0.6 miles north-east of Basingstoke, tends to be programmed around bookings, mastic included.

What to look for in a quote

  • Will RAMS and insurance details be available?
  • The terms of the workmanship guarantee
  • Whether their applicators hold CSCS cards
  • Health and safety accreditation such as CHAS

Questions to ask before you appoint anyone

What sealant work can’t fix

A few problems need another trade or a different fix, and we say so rather than covering them up:

  • Frames fitted out of tolerance
  • Specifying the product where the designer hasn’t
  • Approving fire stopping as compliant

If in doubt, give us a call on 01277 525 020 or use the quote form and we’ll say what we think.

Where we work in Basingstoke

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

Trusted. Accredited. Insured.