Services - DaCosta Construction

OUR FEATURED SERVICES

BUILT FROM THE GROUND UP.

From site preparation to final construction, we provide end-to-end solutions for residential, commercial, and civil projects.

EXCAVATING

Professional excavation and site preparation services to start your project on solid ground.

FOUNDATIONS, FRAMING & DECKS

Strong foundations and expert framing that create the structural integrity every build requires.

RENOVATIONS & ADDITIONS

Transform your existing space with beautiful renovations and seamless additions.

CARRIAGE HOMES, GARDEN SUITES & ADUs

Custom, high-quality secondary suites and small homes built by a licensed home builder you can trust.

SEPTIC & DRAINAGE SOLUTIONS

Reliable septic and drainage solutions that protect your property and ensure long-term performance.

01 EXCAVATING SERVICES

EXCAVATION DONE RIGHT.

FROM TIGHT ACCESS TO FULL SITE PREPARATION

Whether you’re preparing for a new project or upgrading existing infrastructure, DaCosta Construction provides professional excavation services throughout Chilliwack and the Fraser Valley.

With our in-house equipment and experienced operators, we can handle everything from small-access residential projects to larger excavation and site preparation work. From the first bucket of dirt to the final grade, we take pride in delivering clean, efficient, and reliable results.

THE RIGHT EQUIPMENT FOR EVERY JOB

BOBCAT E10

Mini Excavator

Small but incredibly capable, our Bobcat E10 is ideal for projects where access is limited. Its compact design allows us to access areas that larger machines simply can’t reach, helping homeowners complete projects with minimal disruption to existing landscaping and structures.

Backyard excavation
Tight side-yard access
Utility trenching
Perimeter drainage upgrades
Small retaining walls
Septic repairs
Landscape excavation

BOBCAT E26

Excavator

When more power and reach are required, our Bobcat E26 is ready for the job. The E26 provides the versatility and performance needed to tackle residential, commercial, and civil excavation projects efficiently.

Site preparation
Driveway excavation
Septic system installations
Retaining wall construction
Demolition work
Concrete pad preparation
Foundation excavation
Large-scale grading

02 FOUNDATIONS, FRAMING & DECKS

BUILT ON A SOLID FOUNDATION.

FROM FOOTINGS TO FRAMING, WE BUILD IT RIGHT FROM THE START.

Every successful construction project begins with a strong foundation and a properly built structure. At DaCosta Construction, we complete our foundations and framing work in-house, giving our clients greater quality control, accountability, and consistency throughout the entire build process.

Whether you’re building a custom home, carriage home, garden suite, addition, deck or commercial project, our team has the experience to ensure your project starts on solid ground.

Our team understands that the foundation and framing stages are among the most important phases of any construction project. These critical structural components impact everything that follows.

By completing excavation, foundations, and framing with our own crews, we maintain quality standards from the ground up while ensuring timelines, communication, and workmanship remain consistent throughout the project.

03 RENOVATIONS & ADDITIONS

REIMAGINE WHAT'S POSSIBLE.

SMART PLANNING. Functional design. quality construction.

Whether you’re updating a dated layout, creating space for a growing family, or adding square footage to your home, DaCosta Construction helps homeowners transform existing spaces into homes that better suit the way they live today.

Every successful renovation begins with a thoughtful plan. Our team works closely with homeowners, designers, and architects to ensure every project is carefully considered before construction begins, resulting in better functionality, improved flow, and long-term value.

No project is too small or too large for our team.

GREAT RENOVATIONS START WITH GREAT PLANNING

Many homes throughout Chilliwack and the Fraser Valley were built decades ago and were constructed to last. The structure is often solid, but the layouts no longer reflect the way modern families live.

From compartmentalized floor plans and underutilized spaces to outdated kitchens and awkward room configurations, these homes often have incredible potential waiting to be unlocked.

Our job is to identify opportunities, maximize usable square footage, and create spaces that improve both function and flow. A well-executed renovation starts with a well-executed plan.

04 CARRIAGE HOMES, GARDEN SUITES & ADUs

SMALL FOOTPRINT. BIG POTENTIAL.

FRASER VALLEY ADU SPECIALISTS.

As housing needs continue to evolve, more homeowners are exploring ways to maximize the potential of their property through Accessory Dwelling Units (ADUs). Whether you’re building a carriage home, garden suite, or secondary dwelling for family members, rental income, or future flexibility, DaCosta Construction specializes in helping homeowners unlock additional value from their property.

As a Licensed Home Builder, we can provide qualifying projects with home warranty coverage, giving homeowners added confidence and protection throughout the building process.

WHAT IS AN ADU?

ACCESSORY DWELLING UNIT (ADU)

An ADU is a self-contained residential unit located on the same property as a primary residence.

Common examples include:

ADUs provide additional living space while maintaining the character of existing neighbourhoods and creating more housing opportunities within established communities.

LOCAL EXPERTS IN CARRIAGE HOMES & GARDEN SUITES

Many people assume a smaller home means a simpler project. The reality is often the opposite. While the footprint may be smaller, ADUs frequently involve more planning, more restrictions, and more coordination than traditional residential construction. Every property presents unique challenges, including:

Setbacks
Height restrictions
Lot coverage limitations
Parking requirements
Access considerations
Utility connections
Servicing requirements
Building code compliance

Successfully navigating these requirements requires experience and local knowledge. That is where our team excels.

MAXIMIZING YOUR PROPERTY'S POTENTIAL

We work closely with homeowners, designers, and municipal staff to identify opportunities that maximize both functionality and allowable square footage.

Our experience working within local bylaws allows us to develop solutions that make the most of your property while remaining compliant with municipal regulations.

Every lot is different.

Our goal is to help you understand what’s possible on your property — before construction begins, and every step of the way.

05 SEPTIC & DRAINAGE SOLUTIONS

PROTECT WHAT'S UNDERGROUND.

Septic Systems. Perimeter Drainage. Long-Term Protection.

Many homeowners don’t think about their septic system or perimeter drainage until there’s a problem. Unfortunately, by the time water is entering a basement, crawl space, or yard, significant damage may already be occurring below the surface. At DaCosta Construction, we provide complete septic and drainage solutions throughout Chilliwack and the Fraser Valley. Whether you’re upgrading an aging system, relocating a septic field, replacing perimeter drainage, or servicing a new addition, our experienced team has the equipment and expertise to get the job done right.

PREVENT COSTLY DAMAGE BEFORE IT STARTS

Water is one of the biggest threats to any structure. When drainage systems fail, water can collect around foundations, infiltrate basements and crawl spaces, damage landscaping, and contribute to long-term structural issues. Many homes throughout the Fraser Valley were built decades ago and continue to rely on drainage systems that are now approaching or exceeding their intended lifespan.

If you’re experiencing:

It may be time to investigate your perimeter drainage system.

SEPTIC SYSTEMS

NEW INSTALLATIONS, UPGRADES & RELOCATIONS

Adding a bedroom, bathroom, carriage home, garden suite, or major addition? Your existing septic system may no longer have the capacity to support the increased demand.

Our team can assist with:

New septic installations
Septic system upgrades
Septic field relocations
Septic field replacements
Site preparation
Utility trenching
Excavation and grading
Coordination with septic professionals

If you’re noticing any of these issues, our team can assess the situation and recommend the right solution.

PERIMETER DRAINAGE

A COMMON ISSUE IN FRASER VALLEY HOMES

Many BC box homes and older properties throughout Chilliwack and the Fraser Valley are operating with perimeter drainage systems that are 40 years old or more.

While these homes are often structurally sound, the underground drainage infrastructure may be nearing the end of its lifespan.

Common signs of drainage problems include:

Basement flooding
Damp crawl spaces
Water staining
Musty odours
Foundation moisture
Saturated landscaping
Pooling water around foundations

Replacing perimeter drainage before major failure occurs can prevent costly repairs and help protect your home’s structural integrity.

WARNING SIGNS & COMMON ISSUES

DON'T IGNORE THE SIGNS

Small drainage or septic issues can quickly become major problems if left unaddressed.

Watch for these warning signs:

Sewage odours in yard or home
Slow drains or backups
Lush, soggy areas over your septic field
Gurgling drains
Cracks in foundation or floors
Efflorescence (white powder) on walls
Mold or mildew in basement or crawl space
High water table or poor drainage