Water and Gas proofing membranes
Whether as part of a below ground protection system against water ingress or where gas protection is required, we can work with an existing design or create a design from your construction drawings. We are used to dealing with both benign and challenging environments. We can work with a supplied soil report or can commission this on your behalf. We fit systems to deal with Radon, Methane and other gases and pollutants as well as normal benign environments. We work with a variety of manufactures using both long established and new approved technology systems.
Cavity Sheet and channel Installation
Where a secondary system is required to deal with any possible water ingress we design and fit cavity tray systems, usually in conjunction with a cavity membrane. We can also supply and install the correct insulation systems specifically designed for use with cavity drain channels and associated cavity sheet.
Concrete Injection and repair work
Whether a structure is existing or a new build, problems can occur where cracks form in a joint area or at any point where hydrostatic pressure will lead to leaking in cracked concrete. We have expertise in dealing with both movement and non-movement joints. Tracking and finding where possible faults exist takes skill and experience, we work together with several partners who assist us with works. Our capabilities cover leak detection and remedial works for underground storage tanks and chambers, retaining walls and other areas that have failed for a variety of reasons. We work with a various types of resins, grouts and other technologies.
Flat Roofs & Podium Decks
We are approved installers and users of systems from Soprema, IKO and Radmat amongst others. We can supply and fit both warm and inverted roof solutions from several BBA approved manufactures to both Podium Decks and Flat roofs. We are used to working with other trades such as hard landscapers and other external feature contractors to ensure that a totally waterproof and correctly drained system is installed. We pride ourselves on detailing for termination areas and service penetrations which can so often be the source of issues.
We can supply insurance backed and manufacturer backed guarantees on various systems for up to 30 years duration, or lifetime of structure depending on the manufactures product.
Green Roofs – Design and full installation
Either working with supplied designs for your project, or contracted by yourselves to supply design and installation, we can provide several solutions using the latest technologies. You may require water management and we can offer this as part of a green roof design package. Green roofs are becoming more common and the technologies are getting ever better, get in touch if you’d like to discuss your next project.
Pumping station design and installation
Many of our structural waterproofing packages will include a pumping station as part of the design and installation, and to evacuate water that may seep in at low levels to a structure. These can range from simple twin pumping stations common in many residential/domestic basement situations through to more complex systems with emergency back-up and alarmed/web/remote controlled systems for larger projects such as apartment blocks or commercial buildings etc. Many pumping stations may also be part of a grey water handling system for the structure, and pat of a larger water management approach.
Design & Correct Installation of movement joints
Depending where we come in on a project, we can operate in several ways; Supervision and sign off of the groundworks team placed systems. Attendance at the site to install against a supplied design or our own solution. We can supply design detailing for movement joints and can work with your engineer to provide a robust solution.
Water bar and injection hose installations
There are some very good water bar technologies currently available. Each have their particular uses and suitability to task. We work with a variety of time and potential cost saving solutions. We are happy wo work with you, your structural engineer and structural drawings to advise on the best solutions.
Injection hoses use is now a popular way of either providing a waterproof resin or other chemical directly to and along a joint area. They can also serve to allow top up after a settlement period and to reinforce or repair issues later on. If the structure is of a complex design, or housing chemicals or other pollutants the fitting of injection hoses at the construction stage can be a valuable way of maintaining the waterproofing or protection of the structure. We can advise on situations where an injection hose system may be required or should be installed.
Consultancy, Structural Waterproofing Advice, Water management, Design for buildings and infrastructure
SWS can work with you through every stage of a project from feasibility studies and acting and advising on the advice of soil reports through to project completion. We offer a range of consultancy and surveying packages for our clients. If you want to outsource the entire waterproofing strategy and design, we can tailor a solution based on your exact requirements. This can include dealing with Architects and Engineers, Building Control and Insurance companies and on behalf your behalf throughout the entire project.
Service Duct and Service Entry Point sealing
We can advise on design and provide installation of various systems to correctly seal incoming services such as cabling and other entry ducts and service pipe work. Many sealing approaches suffer by not differentiating between ducting types and situations where flexing or expansion will or can occur. If you're at the stage of planning and designing service entry or exit points we can assist you with the correct approach.
Ensuring a watertight lift shaft will save money from the day it’s undertaken
There are many reasons that will cause a lift shaft below ground to fail, even before the total structure is completed. A common issue is leaks often start after ancillaries are installed by the lift contractors. This of course makes repair more complex unless one goes through the costly exercise of removal of recently installed equipment thus causing delay. Our pragmatic approach to a range of common issues will ensure that the lift pit is dry and will not cause issues later.
Common problems:
- Placement of waterproofing systems in pit area
- Incorrect following of design by groundworks team
- Incorrect installation of waterproofing systems and waterbars
- Damage by lift installer to integrity of the pit/shaft area
At SWS we can provide two approaches – Supervision and installation or repair to a leaking shaft
We can offer and supply:
- Liaising with lift contractor to understand their requirements
- Repair to constructed shaft-pit with ancillaries installed or pre ancillaries installation
- Guaranteed repairs
- Low start cost solutions that can be added to saving on initial cost
- Fixed price solutions that come with guarantee and ‘no cost call outs’ to reseal if required
Bridge decks and other large area sealing
At SWS we can offer a range of solutions for bridge deck waterproofing. We are approved installers with several manufacturers including installation of their hotmelt and liquid applied systems. Our works are carried out with a full inspection service provided by the manufacturer and backed up with a manufacturer backed guarantee.
We can also provide solutions for:
- A variety of construction joints and termination areas
- Anti-slip coatings for walkways
- Anti-Graffiti coatings
- A variety of specialist flexible coatings and other sealing solutions