Four Solutions shield logo Four Solutions Mould · Pest · Air Management

Mould, pest and air issues, solved at the source.

Moisture and mould can create the conditions for pests such as booklice. Air quality can suffer after both. Four Solutions handles the full chain: find the underlying issue, treat the source, disinfect and protect the space so the problem does not keep coming back.

Licensed, certified & featured on
★★★★★ 4.9 · 100+ Google reviews
Four Solutions commercial mould remediation preparation in Singapore
National Environment Agency Vector Operator Licensed NEA Reg. NEA201812722M
NEA, BCA & bizSAFELicensed and certified team
10 yearsExperience across Singapore
Homes & businessesHospitals, schools, malls, F&B
Underlying issue solvedMould, pest and air managed together
Certified & accredited
NEA Vector Control Operator licensed bizSAFE certified BCA Building and Construction Authority registered
As featured in
Mediacorp Mediacorp Channel 5 Mediacorp Channel 8 CNA 938LIVE 938NOW
Trusted by leading organisations
SingHealth Tan Tock Seng Hospital National Neuroscience Institute Singapore Post Nanyang Polytechnic Temasek Polytechnic Uber SingHealth Tan Tock Seng Hospital National Neuroscience Institute Singapore Post Nanyang Polytechnic Temasek Polytechnic Uber
What we do

Mould, pest and air management under one team

These services support each other. Mould often starts with moisture, pests often feed or breed around that source, and air treatment helps clean up after the work. You do not need separate contractors for each step. Explore our mould removal in Singapore, pest control in Singapore and car fumigation in Singapore services.

Flexible payment options for larger treatments

Eligible customers can ask about instalment payment options through Atome.

Provider terms and approval apply.
Atome
Inspection

Inspecting beyond what the naked eye can see

Visible mould is only part of the assessment. We use professional tools to identify high-risk damp areas and likely moisture pathways before recommending source treatment. Where access is limited, we explain the risk and the next check rather than promising to see through every finish.

UV blacklight inspection highlighting mould activity
UV mould inspectionProfessional UV checks can reveal early surface activity and areas that are easy to miss under normal lighting, then guide closer inspection.
Professional moisture meter reading at a mould inspection
Moisture and humidity readingsMoisture meters and relative-humidity readings help identify damp materials and conditions that allow mould to recur.
Thermal scan used to assess a high-risk moisture area
Thermal scanningThermal imaging can highlight temperature differences consistent with condensation or moisture pathways, guiding targeted further checks.
Our work

Real jobs across Singapore

Homes, retail, offices and vehicles. A full decade of mould and pest work, documented on our own sites, not stock photos.

Four Solutions containing a retail store for commercial mould treatment in Singapore
Commercial mould containment in a retail store
Four Solutions on site at a Mediacorp facility in Singapore
On site at Mediacorp
Four Solutions NEA licensed service van in Singapore
Our NEA licensed team on the road
Four Solutions using UV light to map hidden mould in Singapore
UV mould mapping, finding what the eye cannot
Four Solutions taking a thermal moisture reading on a commercial site in Singapore
Thermal moisture diagnostics on a commercial site
Bed bug droppings found during Four Solutions pest inspection in Singapore
Bed bug evidence found during inspection
Why Four Solutions

A calm, thorough team you can rely on

We are Singapore's mould remediation specialists, NEA licensed and proven across homes and businesses. Careful planning, clean work and clear communication from the first message to the final check.

10 years of experience

A wide clientele across residential and commercial sectors, including hospitals, schools, multinational corporations, shopping centres and restaurants.

The right team on site

Seasoned specialists with deep experience in pest control, mold remediation, maintenance and home services, ready to handle your situation properly.

Professional standards

Meticulous planning, on time execution and transparent daily communication, so you always know what is happening and what comes next.

Four Solutions containing a retail store for commercial mould treatment
As seen on national TV

Featured on national television, twice

Four Solutions on CNA and on Mediacorp's Tuesday Report, on how Singapore keeps mould, pests and problems in check. Tap to watch.

Four Solutions featured on CNA CNA Four Solutions featured on Mediacorp Tuesday Report Mediacorp · Tuesday Report
In their words

What Singapore customers say

Real reviews from homeowners and businesses who called us in when the problem would not go away.

4.9 ★★★★★ from 100+ Google reviews

Read live Google reviews

★★★★★

Honestly amazing service from start to finish. They did not try to sell me something I did not need. Professional, and communicate very well and clearly. Mould removed, painting done. Very friendly folks as well.

Shandeep Singh Shandeep SinghGoogle review
★★★★★

Engaged Four Solutions for mould treatment in our master bedroom. They properly treated the mould, repainted the ceiling with anti-mould paint and made sure the area was protected and cleaned up after. They also helped remove the booklice issue during the treatment.

Dicko Ib Dicko IbGoogle review
★★★★★

Great experience with this mould removal service. The work was done carefully and efficiently, and the wall was plastered up beautifully after the mould was removed. Everything looks clean and well-finished now.

Zann Chua Zann ChuaGoogle review
★★★★★

Very good service by Joe. Caught a few cockroaches with the fumigation. He is very experienced and answered all our questions with regards to how to handle the pests. Highly recommend.

Weidong Toh Weidong TohGoogle review
★★★★★

Clear explanations on the process. The whole process took about 2 hours and was at our convenient time and place. Four Solutions really helped to resolve our cockroach issues.

Lok Wai Khin Lok Wai KhinGoogle review
★★★★★

Very prompt in response even though I WhatsApp at night, and managed to get an appointment for them to come onsite. Car fumigation done and car ready within an hour. Highly recommend Four Solutions.

Cheryl Ng Cheryl NgGoogle review
Get a free quote

Tell us the pest, get a plan today

Send a quick message or a photo of the problem and we will come back with a clear quote and the fastest available slot. Homes, vehicles and businesses across Singapore.

+65 8778 8080Call or WhatsApp
sales@foursolutions.sgEmail enquiries
1 Tampines North Drive 1T-Space, Singapore