Northington construction mastic
Construction mastic for Northington, from a contractor working since 2005. Fully insured and CHAS accredited.
- New external sealant already peeling away
- Cracks opening in caulked internal joints
- Missed perimeter joints on a new elevation
Construction mastic for businesses in Northington
Photos, a specification or a quick description of the joints is enough to start a fixed quote.
How a job runs
Where the site stays busy, the work is phased so only one area is out of use at a time. Each area is protected, prepared and sealed, then reopened once the sealant allows before we move to the next. For work around Northington, we aim to finish in one visit, so photos and measurements up front really help. That way the right products come on the day.
- Drawings, specification and programme come to us.
- Quantities are measured and a fixed price returned.
- The sequence is agreed with the site manager.
- Each area is sealed when it’s released.
- Every joint is cleaned, set to depth and sealed with the specified product.
- After snagging, the work is handed over under our 12-month guarantee.
What we need from you
- Have the specification and drawings to hand
- Point out parking and an unloading spot
- Move anything stored against the joints
Get a fixed quote
Send us photographs, drawings or a joint schedule are often enough for a fixed quote. If the job needs a look first, we’ll arrange a site visit.
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Construction mastic in Northington
Mastic tends to be one of the final packages before handover. Mastic Doctor takes on mastic packages for main contractors and developers with projects in Northington, sealing plot by plot or floor by floor as areas are released. We work on brick and block movement joints, cladding and panel joints and internal decorators’ caulk, and what we are called in for most is new external sealant already peeling away and window and door perimeters that won’t pass inspection. Searching for sealant specialists in Northington? We have been sealing commercial buildings since 2005, CHAS accredited and a Constructionline member.
For a site near Northington, 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 photos and the programme and we will quote to suit.
Every job is signed off with a 12-month guarantee. It’s a plain promise: if the work we did fails within twelve months, we return to fix it.
- Where
- Northington (SO24)
- Region
- Hampshire
- Guarantee
- 12 months on our workmanship
- Quote
- Fixed quote, scope in writing
- Phone
- 01277 525 020
- Last updated
- 3 November 2026
Places near Northington
More services for Northington
Why it’s worth doing now in Northington
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. Around Northington, it’s better to renew all the failing joints at once. Photos of every joint help us quote for the whole job.
The price depends on the quantity of joints, how much old material needs removing and how the joints are reached. Call for a fixed quote when you’re ready.
What you get with us
- Joints cleaned back to sound surfaces
- Work carried out by CSCS-carded applicators
- CHAS accredited contractor
- Colours chosen to suit frames, cladding or finishes where possible
Read what affects the cost and how we’re accredited.
Your questions answered
Is a smaller place like Northington outside your area?
Not at all. Northington is within our area. London and every South East county are within our area. Where we can, we group nearby jobs to make the most of each trip.
What documents will you need to give us for a job in Northington?
Whatever your site asks for, from RAMS to CSCS details, is confirmed when we quote. We’re CHAS accredited and a Constructionline member, with £5m public liability insurance and CSCS-carded applicators.
Is any job too small?
Small jobs are welcome alongside larger packages. Photos and a description are enough to start.
Does weather affect external mastic work?
Conditions have to suit the product before external work starts. Wet or cold joints cause adhesion problems, so we wait rather than redo work.
What guarantee comes with a mastic package?
It’s backed by our 12-month guarantee. Protecting sealed areas from following trades helps avoid damage.
How long before the joints can be used?
We’ll confirm how long the chosen product needs to cure, and sign any area that should be left alone.
Can staff carry on working while you are here?
Yes, as long as we plan it. Tell us your site hours and access windows and we will plan around them.
When something else is needed
A few problems need another trade or a different fix, and we say so rather than covering them up:
- Rework caused by others damaging completed areas
- Defective windows, doors or glazing units (the supplier or installer’s job)
- Specifying the product where the designer hasn’t
If in doubt, phone 01277 525 020 or email us and we’ll say what we think.
What we seal
- Floor and skirting junctions
- Sanitary and kitchen joints
- Cladding and panel joints
- Window and door perimeters
- Internal decorators’ caulk
- Brick and block movement joints
How the quote is worked out
The price varies from site to site. Expect it to depend on:
- Induction, permit and paperwork requirements
- Quantities, in metres or numbers
- Working within restricted access windows
- Removal of failed or old sealant
Quantities, awkward access and phased working all shape the price. Site requirements like inductions and permits play a part as well, along with the time of year for external work.
Details that help us quote
To price the job accurately, we need a clear picture of the site. Useful things to include:
- Whether an asbestos survey exists
- Access details, including height
- Any specification or named product
- Where the site is, with the postcode
The quickest route to a quote is a few photographs and the site postcode. Send them through the quote form, or give us a call on 01277 525 020 or email the details over to discuss it first.
Building and refurbishing in Northington
Northington lies roughly 54 miles out from central London. Commuter-belt towns tend to see a steady flow of new flats, offices and commercial schemes, so mastic packages have to keep pace with busy programmes. The South East is one of the drier parts of the UK. Winter mornings still bring frost and condensation on frames and panels, so we time external mastic for dry faces and agree it with the site team.
Window perimeters and facade joints around Northington need correct width, depth and backing rod as much as a neat finish.
Northington is about 7 miles north-east of Hyde, in Hampshire. Businesses, contractors and managing agents in Northington use us for work on mastic packages. Our Hampshire coverage takes in 723 places. Sites around Southampton have their own page, roughly 17 miles from Northington.
Work on mastic packages is covered throughout SO24, for business premises of every kind. If your building is just outside Northington, we cover Totford (1 mile north-east), Brown Candover (1 mile north-east), Old Alresford (2 miles south-east), Bighton (3 miles south-east) and Preston Candover (4 miles north-east). Nearby towns on our patch include Basingstoke (10 miles north), Winchester (8 miles south-west), Eastleigh (13 miles south-west), Andover (14 miles north-west), Chandler's Ford (13 miles south-west) and Alton (9 miles east).
Local landmarks in Northington
Locally, jobs take us to sites close to The Woolpack Inn. The nearest railway station is Micheldever station, about 4.6 miles north-west of the centre. Well-known places in the area include Barton Castle (3.2 miles east).
When to call us in Northington
Value-engineered products sometimes end up in the wrong joints. A sealant that isn’t right for the substrate or the movement will fail ahead of time. 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:
- Different trades sealing to different standards
- Existing joints on a refurb that need cutting out and resealing
- Frame perimeters left unsealed or poorly sealed
- Cracks opening in caulked internal joints
On any site in or around Northington, the mastic follows the specification and the programme.
Comparing quotes
- Proof of insurance
- Who will actually carry out the work
- Whether old or failed sealant will be cut out, not overlaid
- How joint depth will be controlled
When to bring in a specialist
Redoing a failed joint usually costs more than getting it right at the outset, 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.
General builders and handymen seal joints, but it isn’t their main trade. A specialist prepares properly, controls joint depth and picks a product with the right movement class.