Construction and new-build mastic in North Street, Hampshire
Our CSCS-carded applicators take on mastic packages for new-build and refurbishment projects in North Street. Send photos or drawings for a fixed quote.
- Oversized or tapered gaps around new frames
- New external sealant already peeling away
- Missed perimeter joints on a new elevation
Construction mastic in North Street
Photos, a specification or a quick description of the joints is enough to start a fixed quote.
Should maintenance staff do it?
Certain joints really need a specialist: fire-rated seals that must follow a tested detail, trafficked floor joints and external movement joints among them. Getting these wrong typically costs more in the end than doing them right.
Site maintenance staff can often handle a short internal joint. The usual problems come from preparation: sealing over old material, sealing onto damp or dusty surfaces, or a product that can’t take the movement.
Construction mastic for commercial buildings in North Street
The specification and the programme set the job, not to habit. If a product is named, that’s what goes in; any alternative we suggest is put to you before anything changes. Backing, primer and depth follow what the sealant maker sets out so the detail on the drawing is what ends up on site. Most enquiries involve external joints sealed in damp or cold conditions that are now failing and sanitary sealant damaged by following trades, across cladding and panel joints, window and door perimeters and floor and skirting junctions. Searching for sealant specialists in North Street? We have been sealing commercial buildings since 2005, with CSCS-carded applicators.
Conversions of older rural buildings near smaller places such as North Street bring stone, flint, brick and timber up against new glazing. Those joints need a sealant that suits an uneven, sometimes porous surface, and often a colour chosen for the building.
We stand by our work with a 12-month guarantee. It covers how we prepared and applied the sealant, and we come back if anything isn’t right.
- Place
- North Street (SO24)
- Wider area
- Hampshire
- Cover
- A 12-month guarantee
- Quote
- A fixed quote before we start
- Phone
- 01277 525 020
- Updated
- 3 November 2026
Common questions from North Street clients
Does your area include sites such as Lower Soldridge Business Park, near North Street?
Yes, sites like Lower Soldridge Business Park are within our area, along with the rest of North Street. To start, just call 01277 525 020 or send photos by email with the unit, the joints involved and your access times.
Is a smaller place like North Street outside your area?
No. Small places get the same service as large ones. London and every South East county are within our area. We plan jobs in smaller places so return trips are kept to a minimum.
Will you stick to the specified products?
Specification first, then the maker’s instructions. Preparation, backing and depth follow the product guidance.
Can you work plot by plot or floor by floor?
We follow the trades through the building. Areas are sealed as they’re released by the site team.
How many days will you need on site?
We plan the time on site around your programme and access. We’ll give you an estimate of time on site when we quote.
Will you quote for a small job?
Whatever the size, the process is the same: send details, get a fixed quote, we seal, guaranteed.
What will the job cost?
We don’t publish prices, as every site differs. Send photographs or drawings and we’ll price it at a fixed figure.
Work for main contractors and building owners
Hotels, schools, healthcare sites, offices and retail units come to us directly as well. We plan around the way the building is used, so the building keeps working while we do.
When you manage a building on behalf of an owner, you need clear quotes and clear reporting. You get a fixed quote, an agreed scope and a walk round at the end.
From enquiry to sign-off
At the end of each section, the masking comes off, the area is cleaned and every joint is checked, ready for your sign-off. If an area should be left alone while the sealant cures, we say how long and put signs out. Rural sites near North Street may need directions, gate codes or a contact on site. Add it to your enquiry and we’ll build it into the plan.
- First we take quantities off the drawings and read through the specification.
- A fixed quote sets out the scope, the products and the sequence.
- You tell us what site paperwork you need, such as RAMS, an insurance certificate or CSCS details, and we confirm it with the quote.
- Areas are sealed plot by plot or floor by floor as the trades hand them over.
- Each joint is prepared, backed to depth and sealed in the product the specification names.
- Before handover, snags are dealt with and the package is signed off under our 12-month guarantee.
Before we start on site
- Let us know about inductions and permits
- Confirm the product named in the specification
- Tell staff and tenants when we will be in
Get a fixed 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, phone 01277 525 020 or send photos by email.
Read more
What sealant work can’t fix
A few problems need another trade or a different fix, and we point that out rather than sealing over them:
- Oversized gaps that need packing or adjustment by others
- Glazing units that are cracked or misted
- Damage to finishes by other trades after we have sealed
Not sure which it is? You can speak to us on 01277 525 020 or use the quote form and we’ll tell you honestly before you book.
Joints and surfaces we work on
- Window and door perimeters
- Cladding and panel joints
- Brick and block movement joints
- Sanitary and kitchen joints
- Internal decorators’ caulk
- Floor and skirting junctions
Also near North Street
More services for North Street
Why deal with it now?
Some packages split mastic across the window fitter, kitchen fitter and plumber. In practice it often means different standards, gaps in responsibility and snags nobody owns. One mastic subcontractor for the lot keeps it simple. Halls, stores and units around places like North Street may not be checked every day, so a failed joint can leak for a while before anyone sees it. Renewing joints in good time avoids the problem.
Whether it’s a single area or a whole estate, the same things set the price: what’s in scope, how we reach it, what’s specified and when it needs doing. Call for a quote, and you will have a fixed figure to work with.
What you get with us
- Standard and matched colours in many product ranges
- Fully insured, including public liability cover
- 12-month guarantee on workmanship
- Constructionline member
Read what affects the cost and our accreditations and insurance.
Looking after the joints
For the best life from the joints:
- Release areas for mastic once other trades have finished in them
- Put any product change through the designer first
- Allow flexibility for external sealing in damp or cold weather
- Keep finished joints away from paint, plaster and scrapers
After we’ve sealed an area, it helps to keep other trades from damaging the joints. New beads should be left to cure before cleaning or decorating nearby.
Sanitary joints that fail early become defects soon after occupation. Leaks behind showers and basins damage finishes and floors, leaving the remedial work to the contractor. Proper preparation, with the right silicone first time, keeps it off the defects list.
Building and refurbishing in North Street
Central London is about 51 miles from North Street. 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. The South East is one of the drier parts of the UK. Winter mornings still bring frost and condensation on frames and panels, so external mastic is timed for workable conditions and agreed with the site manager.
With historic properties like Bentworth Hall (to the north of North Street) in the area, refurbishment work often meets old masonry that needs compatible sealants. When a school such as Ropley Church of England Primary School is extended or refurbished, the mastic package is often squeezed into the holidays. New units and refits on sites such as Lower Soldridge Business Park, 1.4 miles north-east of North Street, need their panel and perimeter joints sealed to the specification.
North Street is about 6 miles south-west of Alton, in Hampshire. Commercial clients in North Street use us for work on mastic packages. North Street is one of 723 places in Hampshire on our list. We also cover Southampton, around 18 miles from North Street.
Postcode districts covered here: SO24 for mastic packages. Close to North Street, our area also takes in Gilbert Street (1 mile south-east), Ropley (1 mile south), Ropley Dean (1 mile south-west), Kitwood (1 mile east) and Charlwood (2 miles south-east). A short drive away, we cover Basingstoke (12 miles north), Winchester (10 miles west), Eastleigh (14 miles south-west), Horndean (13 miles south), Chandler's Ford (15 miles south-west) and Alton (6 miles north-east).
What’s near North Street
Well-known places in the area include Barton Castle (3.3 miles north-west) and Alton Community Hospital (5.1 miles north-east). Open spaces near North Street include Shutts Copse and Red Hill.