You may need a structural engineer when work affects the structure of a building, or when there are signs something may be wrong. Common examples include removing or altering walls, adding an extension, building a retaining wall, repairing damage, assessing cracks or movement, designing foundations, or getting advice for building consent. You may also be asked for engineering input by your architect, builder, council, insurer, or bank. If the project involves safety, stability, or structural changes, it is usually worth getting advice early. DTCE engineering process

Often, yes. If your renovation involves removing walls, changing roof framing, adding large openings, building decks, altering foundations, or making other structural changes, a structural engineer is often needed. Even if the work looks simple, the structure behind it may not be. Getting engineering input early can help avoid redesigns, construction delays, and awkward moments where someone on site says, “That wall was doing more than we thought.”

Yes — that is a common reason people contact us. Some cracks are cosmetic. Others can point to movement, moisture issues, settlement, deterioration, or structural problems. The location, size, pattern, and timing of the crack all matter. We can inspect the issue and provide advice on likely cause, level of concern, and whether any repair or further investigation is needed. The main value is not just being told “there is a crack,” which is usually already quite visible, but understanding what it means.

A structural report explains what is happening, what the risks are, and what we recommend next. Structural design is the next step if work needs to be built, repaired, strengthened, or consented. That usually involves calculations, drawings, and engineering details for construction. In simple terms: a report assesses the problem or condition, while design provides the solution. Some projects only need a report. Others start with a report and then move into design.

Sometimes yes, sometimes no. It depends on the type of work, the level of risk, and whether the work falls within an exemption under the Building Act. Many structural alterations, retaining walls, decks, and new structural elements do require consent. Some smaller works may not. We can often help you understand whether engineering design is needed and whether consent is likely to be part of the process. Where consent is required, we prepare the engineering documents needed to support the application.

We can help with both structural and geotechnical issues, depending on the project. That may include retaining walls, slope or landslip concerns, ground conditions, foundation issues, movement, cracking, and site-related risks that affect the structure or buildability of a project. Some jobs are mainly structural. Others start with ground or site concerns and then lead into retaining, drainage, foundation, or repair design. In the real world, these issues often overlap, which is part of the fun.

Each project is different and we price our services depending on a number of factors. A general rule of thumb is that an engineer will cost approximately 1-5% of the total project budget. For example, if your project will cost $1,000,000, the engineering will be $10,000 to $50,000 of that. Since we have been in business for 30 years, we can also provide a historic cost of project types we have completed in the past. For more information follow this link: DTCE pricing

Construction monitoring is an engineers independent monitoring of contractors or builders as they carry out the Building Consent works. It is very important to ensure contractors are keeping to the plans we designed and to monitor while construction is underway because many structural elements such as beams, reinforcing and foundations will be hidden once completed. A lot of factors involved with construction monitoring are outside our control, including climate, unseen changes in site conditions and contractor competency. Because of this, we can only provide rough estimates of the cost of construction monitoring. For an historic view of how much construction monitoring can cost, follow this link : DTCE pricing

We are active in the engineering community and are members of all the major professional engineering bodies and associations. All our projects are reviewed or designed by a Chartered Professional engineer (CPEng) that ensures quality in our service. For more information on what CPEng means, follow these links: https://www.cpec.org.nz/cpec/what-does-cpeng-mean DTCE engineers