Key Performance Indicators (KPIs) are important metrics used to track and measure progress towards business goals. In the context of residential building construction, some KPIs that estimators can use to measure their performance and success include:

1. Accuracy of Estimates: One of the most critical KPIs for estimators is the accuracy of their estimates. Building accurate cost estimates for residential construction projects is critical to ensuring that the project is profitable, and the client’s budget is not blown. Estimators should track their estimates' accuracy by comparing the actual costs to their estimates and revising their methods and assumptions accordingly.

2. Turnaround Time: The turnaround time for estimators is also a vital KPI as it can be used to measure how efficient they are. Estimators need to provide their clients with accurate estimates in a timely manner to help them secure financing and move forward with the project. By tracking how much time it takes to produce an estimate, estimators can identify opportunities to improve their workflow and efficiency.

3. Win/Loss Ratio: Estimators can track their win/loss ratio by comparing the number of bids they won against the number of bids they lost. This KPI is important because it can help estimators identify opportunities for improvement in their proposal strategy and better understand the market conditions in which they are competing.

4. Client Satisfaction: Client satisfaction is a critical KPI as it can influence the likelihood of repeat business and referral business. Estimators can track this KPI by conducting surveys or engaging in follow-up conversations with clients to determine their level of satisfaction with the estimate they received.

5. Gross Margin: Gross margin is a KPI that measures the profitability of a project. Estimators can track how much gross margin they generate for the company by comparing the total cost of the project to the estimated cost. By doing this, estimators can identify opportunities to increase profitability by better pricing and sourcing materials.

In summary, estimators in residential building construction can track a range of KPIs, including accuracy of estimates, turnaround time, win/loss ratio, client satisfaction, and gross margin. By monitoring these KPIs, estimators can identify areas for improvement and make data-driven decisions that contribute to the overall success of the company.